Device for rapidly culturing biochemical biofilm

Abstract

The invention relates to a device for rapidly culturing a biochemical biofilm, which comprises a culture tower, and a plurality of rotary culture components are uniformly arranged in the culture tower and are used for loading the biofilm; a water outlet tank is arranged above the rotary culture assembly, two sides of the water outlet tank are respectively provided with a movable sludge scraping settlement plate, and the movable sludge scraping settlement plates are used for scraping floating flocculent sludge on the liquid level to two sides of the top of the culture tower and discharging the flocculent sludge to the bottom of the culture tower through circulating pipes on two sides of the culture tower for cyclic utilization; the rotary culture assembly comprises a plurality of forward rotation load parts and a plurality of reverse rotation load parts, the forward rotation load parts and the reverse rotation load parts are cylindrical, and the forward rotation load parts and the reverse rotation load parts are nested layer by layer from outside to inside and are alternately arranged; a plurality of first loading belts are evenly arranged on the surface of the forward rotation loading part in the circumferential direction of the forward rotation loading part, and a plurality of second loading belts are evenly arranged on the surface of the reverse rotation loading part in the circumferential direction of the reverse rotation loading part and used for loading biological membranes.

Description

Technical Field

[0001] The invention belongs to the technical field of sludge taming, and in particular relates to a device for rapidly culturing a biochemical biofilm. Background Art

[0002] Biofilm wastewater treatment technology is an important biochemical treatment method. Through the contact between aerobic biofilm and pollutants in sewage, organic pollutants are consumed and decomposed, and the treatment efficiency is relatively high. However, for the treatment of sewage with high salt content, microorganisms are required to have high salt tolerance. The culture time of this type of biofilm is long, and the biofilm growth cycle is long. There is currently no effective rapid culture method. Moreover, in a high-salt water environment, the buoyancy is relatively large, and sludge is easy to float, which has an adverse effect on the full contact between sludge, sewage and biofilm. In addition, oxygen needs to be supplied in the culture environment, and bubbles will adhere to the load rack and / or biofilm, occupying the load space, and flocculent sludge will also adhere and float, which is not conducive to the rapid attachment of the biofilm and the contact with the sludge. Summary of the invention

[0003] In view of the above problems, the present invention provides a device for rapidly culturing biochemical biofilms, comprising a culture tower, in which a plurality of rotating culture components are evenly arranged for carrying biofilms; a water outlet trough is arranged above the rotating culture component, and a movable scraper and sedimentation plate is respectively arranged on both sides of the water outlet trough for scraping the floating flocculent sludge on the liquid surface to both sides of the top of the culture tower, and then discharged to the bottom of the culture tower through the circulation pipes on both sides of the culture tower for recycling; The rotating culture component includes a plurality of forward-rotating load parts and a plurality of reverse-rotating load parts, both of which are cylindrical, and are nested layer by layer from the outside to the inside and arranged alternately; a plurality of first load belts are evenly arranged on the surface of the forward-rotating load part along its own circumference, and a plurality of second load belts are evenly arranged on the surface of the reverse-rotating load part along its own circumference, for carrying biofilms.

[0004] Optionally, the rotating culture component is cylindrical as a whole, and is provided with a plurality of layers of load parts from the outside to the inside, the inner diameter of the load part gradually decreases from the outside to the inside, and the inner load part is located inside the outer load part; the forward load part and the reverse load part are alternately arranged layer by layer, and the forward load part and the reverse load part rotate in opposite directions, one rotates clockwise and the other rotates counterclockwise; All the positive-rotating load parts are connected to the first rotating shaft and rotate along with the first rotating shaft; all the negative-rotating load parts are connected to the second rotating shaft and rotate along with the second rotating shaft.

[0005] Optionally, the forward-rotating load portion is a hollow cylinder, comprising an upper support ring 1, a plurality of first load belts and a lower support ring 1, the top of the forward-rotating load portion is provided with an upper support ring 1, and the bottom is provided with a lower support ring 1; the first load belt is vertically arranged and evenly arranged along the circumference of the upper support ring 1, the top end of the first load belt is connected to the upper support ring 1, and the bottom end is connected to the lower support ring 1, the first load belt comprises a plurality of shuttle-shaped hollow knots from top to bottom, the long axis of the shuttle shape is vertical, and the upper and lower knots are connected end to end; An upper inner track 1 is provided on the inner side of the upper support ring 1, and an upper outer track 1 is provided on the outer side; a lower inner track 1 is provided on the inner side of the lower support ring 1, and a lower outer track 1 is provided on the outer side; the top end of the outer defoaming column is slidably connected to the upper outer track 1, and the bottom end is slidably connected to the lower outer track 1; the top end of the inner defoaming column is slidably connected to the upper inner track 1, and the bottom end is slidably connected to the lower inner track 1, so as to eliminate bubbles on the first load belt and release more load space.

[0006] Further optionally, a plurality of load bars 1 are provided inside the shuttle-shaped knot of the first load belt from top to bottom. The load bar 1 is horizontally arranged and has its two ends connected to the arc-shaped side edges on both sides of the knot. A row of upward convex teeth is provided on the top of the load bar 1, and a row of downward convex teeth is provided on the bottom to increase the load point locations, and a gap is left between the corresponding bottom convex teeth and top convex teeth of two adjacent load bars 1 above and below.

[0007] Further optionally, in two first load belts adjacent to each other on the left and right, the widest part of the shuttle-shaped knot of one first load belt is at the same height as the head and tail connection points of the upper and lower knots of the other first load belt, that is, the widest part of the knot of one first load belt corresponds to the narrowest part of the knot of the other first load belt, thereby maximizing the use of space and increasing the load area.

[0008] Further optionally, the top end of the outer defoaming column is connected to the upper outer track 1 through the first driving block, and the bottom end is connected to the lower outer track 1 through the second driving block; the top end of the inner defoaming column is connected to the upper inner track 1 through the third driving block, and the bottom end is connected to the lower inner track 1 through the fourth driving block; The above four driving blocks are all communicatively connected to a control device outside the culture tower, and the control device controls the movement of the outer defoaming column and the inner defoaming column by controlling the moving speed of the four driving blocks on the corresponding tracks.

[0009] Further optionally, the forward-rotating load portion is provided with a vertical hollow bar 1, the first load belt is not arranged in the area of ​​the hollow bar 1, and the upper support ring 1 and the lower support ring 1 are both interrupted, and the outer defoaming column and the inner defoaming column cannot pass through the area of ​​the hollow bar 1 in the same forward-rotating load portion.

[0010] Further optionally, the outer defoaming column and the inner defoaming column are both cylindrical, an outer rotating shaft is provided at the center of the outer defoaming column, the top end of the outer rotating shaft is rotatably connected to the first driving block, and the bottom end is rotatably connected to the second driving block, so that the outer defoaming column can also rotate when moving along the forward-rotating load portion; An inner rotating shaft is arranged at the center of the inner defoaming column, the top end of the inner rotating shaft is rotatably connected to the third driving block, and the bottom end is rotatably connected to the fourth driving block, so that the inner defoaming column can also rotate when moving along the forward rotating load part.

[0011] Optionally, the structure of the reverse load part is the same as that of the forward load part, the reverse load part is a hollow cylinder, including an upper support ring 2, a plurality of second load belts, and a lower support ring 2, the top of the reverse load part is provided with an upper support ring 2, and the bottom is provided with a lower support ring 2; the second load belt is vertically arranged and evenly arranged along the circumference of the upper support ring 2, the top end of the second load belt is connected to the upper support ring 2, and the bottom end is connected to the lower support ring 2, the second load belt includes a plurality of shuttle-shaped hollow knots from top to bottom, the long axis of the shuttle shape is vertical, and the upper and lower knots are connected end to end; The inner side of the upper supporting ring 2 is provided with an upper inner track 2, and the outer side is provided with an upper outer track 2; the inner side of the lower supporting ring 2 is provided with a lower inner track 2, and the outer side is provided with a lower outer track 2.

[0012] In order to solve the connection problem between two adjacent layers of load parts, the present invention provides the following solution. Further optionally, when all the load parts of the same rotating culture component stop rotating, the hollow bars of all the load parts stop at the same angle, that is, the hollow bars of all the load parts are arranged in sequence from outside to inside along the same radial direction of the rotating culture component; The upper support rings at one end of the same side of all the hollow bars are hollow inside and are equipped with retractable upper connecting rails. The upper connecting rails extend from the upper support ring of the outer load-bearing part to the end of the upper support ring at the other end of the hollow bar of the adjacent inner load-bearing part, so that the upper support rings of the two adjacent load-bearing parts are connected at the hollow bar through the upper connecting rails; The lower support ring at one end of the same side of all the hollow bars is hollow inside and is equipped with a retractable lower connecting track. The lower connecting track extends from the lower support ring of the outer load-bearing part to the end of the lower support ring at the other end of the hollow bar of the adjacent inner load-bearing part, so that the lower support rings of the two adjacent load-bearing parts are connected at the hollow bar through the lower connecting track; the outer defoaming column and the inner defoaming column move between the inner and outer load-bearing parts along the upper connecting track and the lower connecting track. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the device for rapidly culturing biochemical biofilm; Figure 2 A schematic diagram of the rotating culture assembly (the load belt is omitted); Figure 3is a schematic diagram of two adjacent second load belts; Figure 4 It is a schematic diagram of the outer defoaming column and the inner defoaming column being installed in coordination between the upper support ring 1 and the lower support ring 1; Figure 5 It is a schematic diagram of the upper connecting track of the upper support ring 1 in a contracted state; Figure 6 This is a schematic diagram showing the connecting track in the extended state.

[0014] In the attached drawings, 1-culture tower, 2-rotating culture assembly, 3-water outlet trough, 4-sludge scraping and settling plate, 5-vertical plate, 6-inclined plate, 7-circulation pipe, 8-positive load part, 9-reverse load part, 10-first load belt, 11-second load belt, 12-feeding pipe, 13-pull rod, 14-water inlet pipe, 15-first rotating shaft, 16-second rotating shaft, 17-upper support ring 1, 18-upper support ring 2, 19-lower support ring 1, 20-lower support ring 2, 21-knot, 22-upper inner track one, 23-upper outer track one, 24-lower inner track one, 25-lower outer track one, 26-lower inner track two, 27-lower outer track two, 28-upper inner track two, 29-upper outer track two, 30-outer defoaming column, 31-inner defoaming column, 32-load bar one, 33-load bar two, 34-hollow bar one, 35-hollow bar two, 36-outer rotating shaft, 37-inner rotating shaft, 38-upper connecting track, 39-upper pushing block. DETAILED DESCRIPTION

[0015] This embodiment provides a device for rapidly culturing biochemical biofilms, such as Figure 1-Figure 6 As shown, it includes a culture tower 1, in which a plurality of rotating culture components 2 are evenly arranged for carrying biofilm; a water outlet trough 3 is arranged above the rotating culture component 2, and a movable scraper and sedimentation plate 4 is respectively arranged on both sides of the water outlet trough 3, which is used to scrape the floating flocculent sludge on the liquid surface to both sides of the top of the culture tower 1, and then discharged to the bottom of the culture tower 1 through the circulation pipes 7 on both sides of the culture tower 1 for recycling; The rotating culture component 2 includes a plurality of forward-rotating load parts 8 and a plurality of reverse-rotating load parts 9, both of which are cylindrical, and are nested layer by layer from the outside to the inside, and are arranged alternately; a plurality of first load belts 10 are evenly arranged on the surface of the forward-rotating load part along its circumference, and a plurality of second load belts 11 are evenly arranged on the surface of the reverse-rotating load part along its circumference, for carrying biofilms.

[0016] Optionally, the culture tower 1 is cylindrical as a whole, with a feed pipe 12, an air distribution pipe and a water distribution pipe at the bottom, a water outlet pipe and two circulation pipes 7 at the top, and the circulation pipes 7 are arranged on opposite sides of the culture tower 1; the water inlet pipe 14 is connected to the water distribution pipe to input wastewater to the culture tower 1; the air distribution pipe is connected to an external air supply device and is arranged below the water distribution pipe to provide oxygen to the culture tower for use by aerobic microorganisms; The outlet pipe is connected to the outlet tank 3 to discharge the treated wastewater; the two circulation pipes 7 are connected in parallel to the feed pipe 12 to return the flocculent sludge at the top of the culture tower 1 to the bottom of the culture tower 1 for further use; the feed pipe 12 is also connected to the bacterial liquid tank and the sludge hopper to input aerobic microorganisms and sludge into the bottom of the culture tower 1 to contact with the wastewater, promote the microorganisms to load on the rotating culture component 2 and form a biofilm. The air distribution pipe and water distribution pipe are both conventional.

[0017] Optionally, a water outlet trough 3 is provided at the top of the culture tower 1, both ends of the water outlet trough 3 are fixed on the inner wall of the culture tower 1, and the middle part of the water outlet trough 3 passes through the center of the culture tower 1, and the water at the top of the culture tower 1 overflows from the top of the walls on both sides of the water outlet trough 3 to the inside of the water outlet trough 3; one end of the water outlet trough 3 is connected to a water outlet pipe.

[0018] Optionally, the rotating culture component 2 is cylindrical as a whole, and is provided with several layers of load parts from the outside to the inside, the inner diameter of the load part gradually decreases from the outside to the inside, and the inner load part is located inside the outer load part; the positive load part and the reverse load part are alternately arranged layer by layer, and the rotation directions of the positive load part and the reverse load part are opposite, one rotates clockwise and the other rotates counterclockwise; All the positive-rotation load parts are connected to the first rotating shaft 15 and rotate along with the first rotating shaft 15 ; all the negative-rotation load parts are connected to the second rotating shaft 16 and rotate along with the second rotating shaft 16 .

[0019] Further optionally, the first rotating shaft 15 and the second rotating shaft 16 are both vertically arranged, the first rotating shaft 15 extends upward and passes through the top of the culture tower 1, and is connected to the first motor above the culture tower 1; the second rotating shaft 16 extends downward and passes through the bottom of the culture tower 1, and is connected to the second motor below the culture tower 1.

[0020] Further optionally, the first load belt and the second load belt are made of the same material, both of which are rough hemp ropes. The hemp ropes have good toughness, large specific surface area, many pores, and a large load-bearing area. According to the needs of actual applications, the number of strands of the hemp ropes can be increased to obtain a load belt with toughness and strength that meet the requirements.

[0021] Optionally, the forward-rotating load portion is a hollow cylinder, including an upper support ring 17, a plurality of first load belts, and a lower support ring 19. The top of the forward-rotating load portion is provided with an upper support ring 17, and the bottom is provided with a lower support ring 19; the first load belt is vertically arranged and evenly arranged along the circumference of the upper support ring 17, the top end of the first load belt is connected to the upper support ring 17, and the bottom end is connected to the lower support ring 19, and the first load belt includes a plurality of shuttle-shaped hollow knots 21 from top to bottom, the long axis of the shuttle shape is vertical, and the upper and lower knots are connected end to end; An upper inner track 22 is provided on the inner side of the upper support ring 17, and an upper outer track 23 is provided on the outer side; a lower inner track 24 is provided on the inner side of the lower support ring 19, and a lower outer track 25 is provided on the outer side; the top end of the outer defoaming column 30 is slidably connected to the upper outer track 23, and the bottom end is slidably connected to the lower outer track 25; the top end of the inner defoaming column 31 is slidably connected to the upper inner track 22, and the bottom end is slidably connected to the lower inner track 24, so as to eliminate bubbles on the first load belt and release more load space.

[0022] Further optionally, a plurality of load bars 1 32 are arranged inside the shuttle-shaped knot of the first load belt from top to bottom, the load bars 1 32 are arranged horizontally and the two ends are connected to the arc-shaped sides of the knot, a row of upward convex teeth are arranged on the top of the load bars 1 32, and a row of downward convex teeth are arranged on the bottom to increase the load points, and a gap is left between the corresponding bottom convex teeth and top convex teeth of two adjacent load bars 1 32. The material of the load bars 1 32 and the convex teeth is plastic.

[0023] Further optionally, in two first load belts adjacent to each other on the left and right, the widest part of the shuttle-shaped knot of one first load belt is at the same height as the head and tail connection points of the upper and lower knots of the other first load belt, that is, the widest part of the knot of one first load belt corresponds to the narrowest part of the knot of the other first load belt, thereby maximizing the use of space and increasing the load area.

[0024] Further optionally, the top end of the outer defoaming column 30 is connected to the upper outer track 23 through a first driving block, and the bottom end is connected to the lower outer track 25 through a second driving block; the top end of the inner defoaming column 31 is connected to the upper inner track 22 through a third driving block, and the bottom end is connected to the lower inner track 24 through a fourth driving block; The above four driving blocks are all communicatively connected to a control device outside the culture tower 1 , and the control device controls the movement of the outer defoaming column 30 and the inner defoaming column 31 by controlling the moving speed of the four driving blocks on the corresponding tracks.

[0025] As a specific implementation manner, the first driving block and the second driving block have the same moving speed, so that the outer defoaming column 30 remains vertical; the third driving block and the fourth driving block have the same moving speed, so that the inner defoaming column 31 remains vertical; the moving speeds of the first driving block and the third driving block are adapted, so that the outer defoaming column 30 and the inner defoaming column 31 are always arranged side by side in the radial direction of the forward rotating load part, so that the outer defoaming column 30 and the inner defoaming column 31 can contact the same first load belt at the same time.

[0026] Further optionally, the forward-rotating load portion is provided with a vertical hollow bar 34, the first load belt is not provided in the region of the hollow bar 34, and the upper support ring 17 and the lower support ring 19 are both interrupted, the outer defoaming column 30 and the inner defoaming column 31 cannot pass through the region of the hollow bar 34 in the same forward-rotating load portion, and the outer defoaming column 30 and the inner defoaming column 31 can only move from one end of the hollow bar 34 to a direction away from the hollow bar 34 along the upper support ring 17 at the same time, and finally move to the other end of the hollow bar 34. The length of the hollow bar 34 is slightly longer than the outer diameter of the outer defoaming column 30, and also slightly longer than the outer diameter of the inner defoaming column 31, that is, the outer defoaming column 30 or the inner defoaming column 31 is allowed to pass through the hollow bar 34 and enter the inner side of the forward-rotating load portion.

[0027] Further optionally, the outer defoaming column 30 and the inner defoaming column 31 are both cylindrical, and an outer rotating shaft 36 is provided at the center of the inner part of the outer defoaming column 30, and the top end of the outer rotating shaft 36 is rotatably connected to the first driving block, and the bottom end is rotatably connected to the second driving block, so that the outer defoaming column 30 can also rotate when moving along the forward-rotating load portion; An inner rotating shaft 37 is provided at the center of the inner defoaming column 31. The top end of the inner rotating shaft 37 is rotatably connected to the third driving block, and the bottom end is rotatably connected to the fourth driving block, so that the inner defoaming column 31 can also rotate when moving along the forward rotating load part.

[0028] The surface of the positive-rotating load part of the present invention is provided with a circle of first load belt as a carrier for carrying biofilm. The mutual cooperation of the shuttle-shaped knots of adjacent first load belts and the setting of the load bar 32 and the rack inside the knot can effectively increase the load sites and increase the biofilm density. The positive-rotating load part is in a rotating state, stirring the wastewater in the culture tower 1, promoting the full contact between the wastewater, flocculent sludge, and microorganisms and the first load belt, and improving the loading efficiency. A plurality of load bars 32 with upper and lower racks are provided in the shuttle-shaped knot, which can effectively capture the flocculent sludge near the first load belt in the rotating state, and promote the flocculent sludge to be entangled on the knot or the load bar 32. The rough surface of the knot and the rack of the load bar 32 allow the flocculent sludge to remain on the first load belt, promoting the rapid proliferation of the biofilm.

[0029] The oxygen inputted by the air distribution pipe is in the form of tiny bubbles, which are attached to the first load belt. The rough surface of the first load belt is not conducive to the detachment of the small bubbles. The small bubbles will occupy the load area of ​​the first load belt, which is not conducive to increasing the load capacity of the biofilm. In addition, the small bubbles are relatively stable and not easy to break, nor are they easy to merge with other small bubbles into large bubbles and detach from the first load belt.

[0030] In view of the above problems, the present invention designs an outer defoaming column 30 and an inner defoaming column 31, and the first load belt is between the outer defoaming column 30 and the inner defoaming column 31. When the outer defoaming column 30 and the inner defoaming column 31 move along the upper support ring 17, they pass through each first load belt and squeeze the first load belt between the outer defoaming column 30 and the inner defoaming column 31, which can not only break or squeeze away small bubbles (leave the first load belt), but also squeeze and reinforce the biofilm that has been attached to the first load belt to prevent the biofilm from falling off due to loose attachment. The surface of the outer defoaming column 30 and the inner defoaming column 31 is made of soft foam material, and the biofilm is not damaged when squeezed against each other.

[0031] Optionally, the structure of the reverse load part is the same as that of the forward load part. The reverse load part is a hollow cylinder, including an upper support ring 18, a plurality of second load belts, and a lower support ring 20. The top of the reverse load part is provided with an upper support ring 18, and the bottom is provided with a lower support ring 20; the second load belt is vertically arranged and evenly arranged along the circumference of the upper support ring 18, the top end of the second load belt is connected to the upper support ring 18, and the bottom end is connected to the lower support ring 20. The second load belt includes a plurality of shuttle-shaped hollow knots from top to bottom, the long axis of the shuttle shape is vertical, and the upper and lower knots are connected end to end; An upper inner track 28 is disposed inside the upper support ring 18 , and an upper outer track 29 is disposed outside the upper support ring 18 ; a lower inner track 26 is disposed inside the lower support ring 20 , and a lower outer track 27 is disposed outside the lower support ring 20 .

[0032] Further optionally, a plurality of load bars 33 are arranged inside the shuttle-shaped knot of the second load belt from top to bottom, the load bars 33 are arranged horizontally and the two ends are connected to the arc-shaped sides of the knot, a row of upward convex teeth are arranged on the top of the load bars 33, and a row of downward convex teeth are arranged on the bottom to increase the load points, and a gap is left between the corresponding bottom convex teeth and top convex teeth of two adjacent load bars 33. The material of the load bars 33 and the convex teeth is plastic.

[0033] Further optionally, in two second load belts adjacent to each other on the left and right, the widest part of the shuttle-shaped knot of one second load belt is at the same height as the head and tail connection points of the upper and lower knots of the other second load belt, that is, the widest part of the knot of one second load belt corresponds to the narrowest part of the knot of the other second load belt, thereby maximizing the use of space and increasing the load area.

[0034] Further optionally, the inversion load portion is provided with a vertical hollow bar 2 35, and no second load belt is provided in the area of ​​the hollow bar 2 35, and the upper support ring 2 18 and the lower support ring 2 20 are both interrupted, and the outer defoaming column 30 and the inner defoaming column 31 cannot pass through the area of ​​the hollow bar 2 35 in the same inversion load portion, and the outer defoaming column 30 and the inner defoaming column 31 can only move from one end of the hollow bar 2 35 toward the direction away from the hollow bar 2 35 along the upper support ring 2 18 at the same time, and finally move to the other end of the hollow bar 2 35. The length of the hollow bar 2 35 is slightly longer than the outer diameter of the outer defoaming column 30, and also slightly longer than the outer diameter of the inner defoaming column 31, that is, the outer defoaming column 30 or the inner defoaming column 31 is allowed to pass through the hollow bar 2 35 and enter the inner side of the inversion load portion.

[0035] A rotating culture component 2 is only provided with an outer defoaming column 30 and an inner defoaming column 31. The outer defoaming column 30 and the inner defoaming column 31 can enter the inner load part from the hollow bar of the outer load part, and then rotate along the inner load part. When moving to the hollow bar of the inner load part, they enter the inner load part; similarly, the outer defoaming column 30 and the inner defoaming column 31 can move layer by layer from the innermost load part to the outermost load part. Therefore, further optionally, the top end of the outer defoaming column 30 is connected to the upper outer track 29 through the first drive block, and the bottom end is connected to the lower outer track 27 through the second drive block; the top end of the inner defoaming column 31 is connected to the upper inner track 28 through the third drive block, and the bottom end is connected to the lower inner track 26 through the fourth drive block.

[0036] In order to solve the connection problem between two adjacent layers of load parts, the present invention provides the following solution. Further optionally, when all the load parts of the same rotating culture component 2 stop rotating, the hollow bars of all the load parts stop at the same angle, that is, the hollow bars of all the load parts are arranged in sequence from outside to inside along the same radial direction of the rotating culture component 2; The upper support rings at one end of the same side of all hollow bars are hollow inside and are equipped with retractable upper connecting rails 38. The upper connecting rails 38 extend from the upper support ring of the outer load-bearing part to the end of the upper support ring at the other end of the hollow bar of the adjacent inner load-bearing part, so that the upper support rings of the two adjacent load-bearing parts are connected at the hollow bar through the upper connecting rails 38; The lower support ring at one end of the same side of all the hollow bars is hollow inside and is equipped with a retractable lower connecting track. The lower connecting track extends from the lower support ring of the outer load-bearing part to the end of the lower support ring at the other end of the hollow bar of the adjacent inner load-bearing part, so that the lower support rings of the two adjacent load-bearing parts are connected at the hollow bar by the lower connecting track; the outer defoaming column 30 and the inner defoaming column 31 move between the inner and outer load-bearing parts along the upper connecting track 38 and the lower connecting track.

[0037] As a specific implementation method, when the positive rotation load part and the reverse rotation load part adjacent to each other stop rotating, the positions of the hollow bar 1 34 and the hollow bar 2 35 correspond, and a distance inside the upper support ring 17 on the right side of the hollow bar 1 34 is hollow to accommodate the upper connecting rail 38 and the upper push block 39. The upper push block 39 is connected to the tail of the upper connecting rail 38, and the side surface of the upper push block 39 is in close contact with the inner wall of the internal space of the upper support ring 17, so as to prevent a large amount of waste water from entering the internal space of the upper support ring 17 when the upper push block 39 moves to push and pull the upper connecting rail 38; The bending degree of the upper connecting rail 38 itself is greater than that of the upper supporting ring 17 and is bent inward. Since the upper connecting rail 38 is elastic, when it is inside the upper supporting ring 17, it is pressed by the upper supporting ring 17. After the upper connecting rail 38 extends out of the upper supporting ring 17, it restores its own bending shape under the action of elastic force and just bends inward. The head of the upper connecting rail 38 overlaps the end of the upper supporting ring 2 18 of the inner layer inversion load part on the left side of the hollow strip 2 35; Tracks are also provided on both sides of the upper connecting track 38. When the upper connecting track 38 extends out of the upper supporting circle 17 and docks with the upper supporting circle 2 18, the tracks on both sides of the tail of the upper connecting track 38 dock with the upper inner track 1 22 and the upper outer track 1 23 respectively, so that the first driving block and the third driving block can move from the track of the upper supporting circle 1 17 to the tracks on both sides of the upper connecting track 38, and move along the track of the upper connecting track 38 to the upper supporting circle 2 18 of the inner layer inversion load part, and the tracks on both sides of the head of the upper connecting track 38 dock with the upper inner track 2 28 and the upper outer track 2 29 respectively, so that the first driving block and the third driving block can move from the tracks on both sides of the upper connecting track 38 to the upper inner track 2 28 and the upper outer track 2 29; A distance inside the right side of the hollow strip 235 of the upper support ring 218 of the inner layer reversal load part is hollow for accommodating the upper connecting rail 38 and the upper pushing block 39. As mentioned above, the rails on both sides of the tail of the upper connecting rail 38 of the reversal load part are connected to the upper inner rail 28 and the upper outer rail 29, and the head of the upper connecting rail 38 is connected to the end of the left side of the hollow strip 134 of the upper support ring 17 of the inner layer positive rotation load part, and the rails on both sides of the head of the upper connecting rail 38 are connected to the upper inner rail 22 and the upper outer rail 23 of the inner layer positive rotation load part.

[0038] The same is true for the lower connecting track. A section of the interior of the lower supporting ring 19 on the right side of the hollow strip 34 is hollow to accommodate the lower connecting track and the lower pushing block. The lower pushing block is connected to the tail of the lower connecting track. The side of the lower pushing block is in close contact with the inner wall of the internal space of the lower supporting ring 19, so as to prevent a large amount of waste water from entering the internal space of the lower supporting ring 19 when the lower pushing block moves to push and pull the lower connecting track. The bending degree of the lower connecting rail itself is greater than that of the lower supporting ring 19 and is bent inward. Since the lower connecting rail is elastic, when it is inside the lower supporting ring 19, it is pressed by the lower supporting ring 19. After the lower connecting rail extends out of the lower supporting ring 19, it restores its own bending shape under the action of elastic force and just bends inward. The head of the lower connecting rail overlaps the end of the lower supporting ring 20 of the inner layer inversion load part on the left side of the hollow strip 2 35; Tracks are also provided on both sides of the lower connecting track. After the lower connecting track extends out of the lower supporting circle 19 and docks with the lower supporting circle 20, the tracks on both sides of the tail of the lower connecting track are docked with the lower inner track 1 24 and the lower outer track 1 25 respectively, so that the second driving block and the fourth driving block can move from the track of the lower supporting circle 19 to the tracks on both sides of the lower connecting track, and move along the track of the lower connecting track to the lower supporting circle 2 20 of the inner layer inversion load part, and the tracks on both sides of the head of the lower connecting track are docked with the lower inner track 2 26 and the lower outer track 2 27 respectively, so that the second driving block and the fourth driving block can move from the tracks on both sides of the lower connecting track to the lower inner track 2 26 and the lower outer track 2 27; A distance inside the right side of the hollow bar 235 of the lower support ring 20 of the inner reverse load part is hollow, which is used to accommodate the lower connection track and the lower push block. As mentioned above, the tracks on both sides of the tail of the lower connection track of the reverse load part are connected to the lower inner track 26 and the lower outer track 27, and the head of the lower connection track is connected to the end of the left side of the hollow bar 134 of the lower support ring 19 of the inner layer normal rotation load part, and the tracks on both sides of the head of the lower connection track are connected to the lower inner track 124 and the lower outer track 125 of the inner layer normal rotation load part. All the upper push blocks 39 and the lower push blocks are connected to the external control device to control their movement.

[0039] The rotary culture component 2 of the present invention is set to a rotating state so that the wastewater, microorganisms, and flocculent sludge are fully in contact with the load belt. The rotary culture component 2 is a sleeve structure, and the load parts are sleeved from the outside to the inside. The inner load part is less in contact with the wastewater, microorganisms, and flocculent sludge than the outer load part. The positive load part and the reverse load part of the present invention are alternately arranged, and the rotation direction is opposite. In combination with the water inlet and outlet functions of the hollow bars of each load part, the interior of the rotary culture component 2 can be timely filled with water, replenished with water, and discharged with water, so that the load part inside can also be timely contacted with wastewater, microorganisms, and flocculent sludge, which is conducive to the growth of biofilm in the internal load part. By controlling the rotation speed of the first rotating shaft 15 and the second rotating shaft 16 respectively, the rotation speed of the two adjacent load parts is different, and the relative positions of the hollow bar 1 34 and the hollow bar 2 35 can also be changed, so that the water body entering the rotary culture component 2 through each hollow bar 1 34 and the hollow bar 2 35 flows tangentially, which is conducive to fully disturbing the water body. At the same time, in order to prevent excessive tangential water flow force from washing away the biofilm on the load portion, the rotation speeds of the first rotating shaft 15 and the second rotating shaft 16 can be adjusted in real time to achieve an ideal water mixing state.

[0040] When too many small bubbles appear on the load part, the outer and inner defoaming columns 31 are started, and the two defoaming columns start from one side (for example, the left side) of the hollow strip of the outermost load part, and move along the circumference of the load part. While moving, they also rotate and roll. The two defoaming columns contact the inner and outer sides of the extrusion load belt, and reinforce the biofilm while squeezing the small bubbles. When the two defoaming columns move to the right side of the hollow strip of the outermost load part, they move to the left side of the hollow strip of the adjacent inner load part through the upper and lower connecting tracks, and continue to move along the circumference of the load part until they move to the right side of the hollow strip of the innermost load part, so that the two defoaming columns pass through the action load belt of the rotating culture component 2. After cleaning the small bubbles, the two defoaming columns stay in the innermost layer, and the first rotating shaft 15 and the second rotating shaft 16 can start to rotate and continue to load the biological layer. After a period of time, when there are too many small bubbles on the rotating culture component 2, the rotation is stopped, and the two defoaming columns are started again to clean and squeeze the small bubbles of each layer of the load part from the inside to the outside, and finally stop on the outermost load part.

[0041] The upper connecting track 38 and the lower connecting track that need to receive the two defoaming columns are extended, and the other upper and lower connecting tracks are retracted.

[0042] Optionally, a scraper settling plate 4 is provided on both sides of the water outlet trough 3, and the scraper settling plate 4 corresponds to the circulation pipe 7 one by one; the scraper settling plate 4 includes an upper vertical plate and a lower inclined plate 6, the lower part of the vertical plate is submerged below the liquid surface, and the top is exposed above the liquid surface; the bottom of the inclined plate 6 is closer to the center of the culture tower 1 than the top; A pull rod 13 is provided at the top of the side of the vertical plate away from the water outlet trough 3. The pull rod 13 extends horizontally to above the top of the corresponding circulation pipe 7, passes through the side wall of the culture tower 1, and is connected to an external driving device; The scraping and settling plate 4 is retractable as a whole, so that the scraping and settling plate 4 can be moved from the middle of the culture tower 1 to the edge to scrape the mud.

[0043] The scraper and sedimentation plate 4 is initially located beside the outlet trough 3, and gradually moves away from the outlet trough 3. Both ends of the scraper and sedimentation plate 4 always contact the inner wall of the culture tower 1, and the overall length gradually shortens until it shrinks to the shortest length of the scraper and sedimentation plate 4. At this time, the vertical plate pushes the sludge and bubbles to the vicinity of the opening of the corresponding circulation pipe 7 connected to the culture tower 1, so that the scraped sludge returns to the bottom of the culture tower 1 through the circulation pipe 7. When the scraper and sedimentation plate 4 moves, the inclined plate 6 tilts toward the outlet trough 3, and the water that is about to rise to the top of the culture tower 1 encounters the lower surface of the inclined plate 6, which plays a role in three-phase separation and promotes sludge sedimentation and bubble rise.

[0044] The scraper and sedimentation plate 4 is retractable as a whole. For example, the vertical plate and the inclined plate 6 are both segmented and can be retracted into adjacent segments one by one, or extended one by one. The retraction control can be manual or mechanical.

[0045] In order to prevent the first rotating shaft 15 from affecting the movement of the scraper and sedimentation plate 4 , the motor connected to the first rotating shaft 15 can be equipped with a waterproof housing and placed below the liquid surface without affecting the movement of the tilting plate 6 .

[0046] The load part is connected to the corresponding rotating shaft in a conventional manner, for example, a circular connecting ring is arranged above or below the load part, the load part is connected to the connecting ring through a connecting rod, and the connecting ring is further connected to the corresponding rotating shaft through the connecting rod.

Claims

1. A device for rapidly culturing biochemical biofilms, characterized in that: The invention comprises a culture tower, in which a plurality of rotating culture components are evenly arranged for carrying biofilm; a water outlet tank is arranged above the rotating culture component, and a movable sludge scraping and settling plate is arranged on both sides of the water outlet tank, respectively, for scraping the floating flocculent sludge on the liquid surface to both sides of the top of the culture tower, and then discharged to the bottom of the culture tower through the circulation pipes on both sides of the culture tower for recycling; The rotating culture component includes a plurality of forward-rotating load parts and a plurality of reverse-rotating load parts, both of which are cylindrical, and are nested layer by layer from the outside to the inside and arranged alternately; a plurality of first load belts are evenly arranged on the surface of the forward-rotating load part along its own circumference, and a plurality of second load belts are evenly arranged on the surface of the reverse-rotating load part along its own circumference, for carrying biofilms.

2. The device for rapidly culturing biochemical biofilm according to claim 1, characterized in that: The rotating culture assembly is cylindrical as a whole, and is provided with several layers of load parts from the outside to the inside, and the inner diameter of the load part gradually decreases from the outside to the inside, and the inner load part is located inside the outer load part; the positive load part and the reverse load part are alternately arranged layer by layer, and the rotation directions of the positive load part and the reverse load part are opposite, one rotates clockwise and the other rotates counterclockwise; All the positive-rotating load parts are connected to the first rotating shaft and rotate along with the first rotating shaft; all the negative-rotating load parts are connected to the second rotating shaft and rotate along with the second rotating shaft.

3. The device for rapidly culturing biochemical biofilm according to claim 2, characterized in that: The forward-rotating load part is a hollow cylinder, comprising an upper support ring, a plurality of first load belts and a lower support ring. The top of the forward-rotating load part is provided with an upper support ring, and the bottom is provided with a lower support ring. The first load belt is vertically arranged and evenly arranged along the circumference of the upper support ring. The top end of the first load belt is connected to the upper support ring, and the bottom end is connected to the lower support ring. The first load belt comprises a plurality of shuttle-shaped hollow knots from top to bottom, the long axis of the shuttle is vertical, and the upper and lower knots are connected end to end. An upper inner track 1 is provided on the inner side of the upper support ring 1, and an upper outer track 1 is provided on the outer side; a lower inner track 1 is provided on the inner side of the lower support ring 1, and a lower outer track 1 is provided on the outer side; the top end of the outer defoaming column is slidably connected to the upper outer track 1, and the bottom end is slidably connected to the lower outer track 1; the top end of the inner defoaming column is slidably connected to the upper inner track 1, and the bottom end is slidably connected to the lower inner track 1, so as to eliminate bubbles on the first load belt and release more load space.

4. The device for rapidly culturing biochemical biofilm according to claim 3, characterized in that: A plurality of load bars 1 are arranged inside the shuttle-shaped knot of the first load belt from top to bottom. The load bar 1 is arranged horizontally and its two ends are connected to the arc-shaped side edges on both sides of the knot. A row of upward convex teeth is arranged on the top of the load bar 1, and a row of downward convex teeth is arranged on the bottom to increase the load point locations. A gap is left between the corresponding bottom convex teeth and top convex teeth of two adjacent load bars 1 above and below.

5. The device for rapidly culturing biochemical biofilm according to claim 3, characterized in that: In the two first load belts adjacent to each other on the left and right, the widest part of the shuttle-shaped knot of one first load belt is at the same height as the head and tail connection points of the upper and lower knots of the other first load belt, and the widest part of the knot of one first load belt corresponds to the narrowest part of the knot of the other first load belt, thereby maximizing the use of space and increasing the load area.

6. The device for rapidly culturing biochemical biofilm according to claim 3, characterized in that: The top end of the outer defoaming column is connected to the upper outer track 1 through the first driving block, and the bottom end is connected to the lower outer track 1 through the second driving block; the top end of the inner defoaming column is connected to the upper inner track 1 through the third driving block, and the bottom end is connected to the lower inner track 1 through the fourth driving block; The above four driving blocks are all communicatively connected to a control device outside the culture tower, and the control device controls the movement of the outer defoaming column and the inner defoaming column by controlling the moving speed of the four driving blocks on the corresponding tracks.

7. The device for rapidly culturing biochemical biofilm according to claim 3, characterized in that: The forward-rotating load portion is provided with a vertical hollow bar 1, the first load belt is not arranged in the area of ​​the hollow bar 1, and the upper support ring 1 and the lower support ring 1 are both interrupted, and the outer defoaming column and the inner defoaming column cannot pass through the area of ​​the hollow bar 1 in the same forward-rotating load portion.

8. The device for rapidly culturing biochemical biofilm according to claim 6, characterized in that: The outer defoaming column and the inner defoaming column are both cylindrical, and an outer rotating shaft is provided at the center of the outer defoaming column. The top end of the outer rotating shaft is rotatably connected to the first driving block, and the bottom end is rotatably connected to the second driving block, so that the outer defoaming column can also rotate when moving along the forward-rotating load portion; An inner rotating shaft is arranged at the center of the inner defoaming column, the top end of the inner rotating shaft is rotatably connected to the third driving block, and the bottom end is rotatably connected to the fourth driving block, so that the inner defoaming column can also rotate when moving along the forward rotating load part.

9. The device for rapidly culturing biochemical biofilm according to claim 1, characterized in that: The inverted load part is a hollow cylindrical part, comprising an upper support ring 2, a plurality of second load belts, and a lower support ring 2. The upper support ring 2 is arranged at the top of the inverted load part, and the lower support ring 2 is arranged at the bottom. The second load belt is vertically arranged and evenly arranged along the circumference of the upper support ring 2. The top end of the second load belt is connected to the upper support ring 2, and the bottom end is connected to the lower support ring 2. The second load belt comprises a plurality of shuttle-shaped hollow knots from top to bottom, the long axis of the shuttle shape is vertical, and the upper and lower knots are connected end to end. The inner side of the upper supporting ring 2 is provided with an upper inner track 2, and the outer side is provided with an upper outer track 2; the inner side of the lower supporting ring 2 is provided with a lower inner track 2, and the outer side is provided with a lower outer track 2.

10. The device for rapidly culturing biochemical biofilm according to claim 7 or 9, characterized in that: When all the load parts of the same rotating culture component stop rotating, the hollow bars of all the load parts stop at the same angle, and the hollow bars of all the load parts are arranged in sequence from outside to inside along the same radial direction of the rotating culture component; The upper support rings at one end of the same side of all the hollow bars are hollow inside and are equipped with retractable upper connecting rails. The upper connecting rails extend from the upper support ring of the outer load-bearing part to the end of the upper support ring at the other end of the hollow bar of the adjacent inner load-bearing part, so that the upper support rings of the two adjacent load-bearing parts are connected at the hollow bar through the upper connecting rails; The lower support ring at one end of the same side of all the hollow bars is hollow inside and is equipped with a retractable lower connecting track. The lower connecting track extends from the lower support ring of the outer load-bearing part to the end of the lower support ring at the other end of the hollow bar of the adjacent inner load-bearing part, so that the lower support rings of the two adjacent load-bearing parts are connected at the hollow bar through the lower connecting track; the outer defoaming column and the inner defoaming column move between the inner and outer load-bearing parts along the upper connecting track and the lower connecting track.

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