CN208440458U - A kind of membrane bioreactor cleared up automatically - Google Patents

Abstract

The utility model discloses the membrane bioreactors that one kind is cleared up automatically, belong to field of sewage treatment equipment, solve the problems, such as that easily adherency dirt blocks membrane module so as to cause filter membrane in use, its key points of the technical solution are that including film biological tank, membrane module is rotatably connected in the film biological tank, the membrane module includes fixing pipe, cartridge filter and filter membrane, the cartridge filter is rotationally connected in fixing pipe, the filter membrane, which is set to, to be rolled on cylinder side wall, the fixing pipe offers several through-holes, the first air inlet pipe is equipped in the fixing pipe, first air inlet pipe is connected with the second air compressor machine, the utility model is structurally reasonable, using the first air inlet pipe to being passed through compressed air inside membrane module, compressed air is emerged upwards prevents activated sludge to be attached on filter membrane under flow action, to reach the mesh of cleaning filter membrane 's.

Description

A kind of membrane bioreactor cleared up automatically

Technical field

The utility model relates to a kind of sewage disposal devices, more specifically, it relates to a kind of film biology cleared up automatically Reactor.

Background technique

Film-bioreactor is the novel state waste water treatment system of membrane separation technique and biologic treating technique combination. Replace traditional biological processing technique end secondary settling tank using membrane module, keeps high activity sludge concentration in the bioreactor, mention High biological treatment organic loading, to reduce sewage treatment facility occupied area, and remaining by keeping low sludge loading to reduce Sludge quantity.Main activated sludge and macromolecular using in the membrane separation plant entrapping tank being immersed in aerobe pond is organic Object.Activated sludge concentration can be promoted to 8000 ~ 10,000mg/L in membrane bioreactor system, even higher；Sludge age can prolong Length was to 30 days or more.

Currently, the Chinese utility model patent that notification number is CN206109043U discloses a kind of membrane bioreactor, wrap MBR reaction tank, membrane support, membrane module, aerator and rocking equipment are included, there is water inlet and air inlet, film on MBR reaction tank Component is mounted on membrane support, has water outlet on membrane module, and membrane support and aerator are arranged in MBR reaction tank, aeration Device is connected to air inlet, and membrane support is rotationally erected in MBR reaction tank, and rocking equipment wears membrane support.It is shaken when work Pendulum device drive membrane support reciprocally swinging in MBR reaction tank, and then realize membrane module swing, and then in MBR reaction tank Sewage generate friction and shake, promote membrane module to be not easy to adhere to dirt in use or be detached from the dirt being stained with, avoid The problem of film blocking.

Another different technical solution is now provided, solves the problems, such as what adherency dirt on membrane module was difficult to be detached from.

Utility model content

In view of the deficienciess of the prior art, the utility model lies in that provide a kind of membrane bioreactor cleared up automatically, Using the first air inlet pipe to compressed air is passed through inside membrane module, compressed air is emerged upwards prevents activated sludge in flow action Under be attached on filter membrane, thus achieved the purpose that clean filter membrane.

To achieve the above object, the utility model provides following technical solution: the membrane biological reaction that one kind is cleared up automatically Device, including film biological tank, are rotatably connected to membrane module in the film biological tank, the membrane module include fixing pipe, cartridge filter and Filter membrane, the cartridge filter are rotationally connected in fixing pipe, and the filter membrane, which is set to, to be rolled on cylinder side wall, and the fixing pipe is opened Equipped with several through-holes, the first air inlet pipe is equipped in the fixing pipe, first air inlet pipe is connected with the second air compressor machine.

By using above-mentioned technical proposal, after aeration, when treated water discharges, treated water is in water By filter membrane under the action of pressure, activated sludge is barred from outside filter membrane, is drained into the water in membrane module by fixing pipe Outside membrane bioreactor, using the first air inlet pipe to compressed air is passed through inside membrane module, compressed air is emerged upwards to be prevented from living Property sludge be attached under flow action on filter membrane, thus achieved the purpose that clean filter membrane.

The utility model is further arranged to: the cramping cylinder with filter hole, the filtering are arranged on the cartridge filter Film is located at cartridge filter and clamps between cylinder.

By using above-mentioned technical proposal, when the first air inlet pipe is to compressed air is passed through inside membrane module, utilizes and clamp cylinder Filter membrane is clamped, prevents from causing filter membrane to be heaved because compressed air outflows to filter membrane, be mentioned using cylinder is clamped for filter membrane For support force to overcome compressed air to the thrust of filter membrane, reduce damage of the compressed air to filter membrane.

The utility model is further arranged to: the cartridge filter has been fixedly and coaxially connected the second connection gear, and the film is raw Object pond is rotatably connected to transmission shaft, and the transmission shaft is fixedly connected with the second transmission gear engaged with the second connection gear, institute State the second driving motor that film biological tank is equipped with driving transmission shaft rotation.

By using above-mentioned technical proposal, when removing the activated sludge on filter membrane using compressed air, compressed air The impact position top to filter membrane carries out decontamination upwards, is rotated using the second driving motor driving cartridge filter, thus to entire Filter membrane is by being cleaned.

The utility model is further arranged to: described transmission shaft one end passes through film biological tank side wall and extends to film biology Outside pond, one end that the transmission shaft extends to outside film biological tank has been fixedly and coaxially connected the second worm gear, second driving motor Main shaft be coaxially arranged with the second worm screw engaged with the second worm gear.

By using above-mentioned technical proposal, increase the transmission between the second driving motor and cartridge filter using worm and gear Than making the second driving motor cartridge filter can also be driven slowly to rotate under normal rotation speed, making at the second driving motor In in rated speed, increase the second driving motor service life.

The utility model is further arranged to: the fixing pipe is connected with water pump, the water inlet and fixing pipe of the water pump Connection.

By using above-mentioned technical proposal, using the water in water pump extraction membrane module, so that the hydraulic pressure in membrane module is reduced, And then increase the pressure difference inside and outside filter membrane, accelerate the efficiency of water filtering.

The utility model is further arranged to: first air inlet pipe is equipped with several communicating pipes, communicating pipe and solid Determine the connection of the through-hole of pipe, the communicating pipe quantity is less than the quantity of through-hole.

A part of compressed air can be connected to when the water in water pump extraction membrane module and detaches membrane module, reduce impact in filtering The bubble of film, to influence to the cleaning effect of filter membrane, and compressed air enters in water pump and can generate cavitation erosion and damage water Pump reduces compressed air by water pump to avoid influencing the cleaning effect of filter membrane, guarantor by using above-mentioned technical proposal Water pump is protected.

The utility model is further arranged to: the film biology bottom of pond portion is equipped with the second air inlet pipe, second air inlet pipe It is connected to the second air compressor machine.

By using above-mentioned technical proposal, film biological tank is aerated using the second air inlet pipe, does not need to pass through filtering Film prevents the time from damage filter membrane when being aerated, and provides more oxygen for film biological tank, improves at activated sludge Manage the effect of sewage.

The utility model is further arranged to: first air inlet pipe is equipped with first switch valve, in second air inlet pipe Equipped with second switch valve, the first switch valve and second switch valve are solenoid valve, when the first switch valve opens when institute Second switch valve closure is stated, the first switch valve closure when the second switch valve is opened.

By using above-mentioned technical proposal, when second switch valve is opened, first switch valve is closed, merely with the second air inlet Pipe is aerated film biological tank, and when first switch valve is opened, second switch valve is closed, and begins a clean up filter membrane and will be through The sewage discharge for crossing processing, realizes the purpose of automatic switchover, keeps membrane bioreactor more convenient to use.

In conclusion the utility model has the following beneficial effects:

First, compressed air is emitted through filter membrane upwards using the first air inlet pipe to compressed air is passed through inside membrane module Activated sludge is prevented to be attached on filter membrane under flow action out, and compressed air impact will be attached on filter membrane Activated sludge on filter membrane washes from filter membrane, to achieve the purpose that clean filter membrane；

Second, to reduce the hydraulic pressure in membrane module, and then being increased in filter membrane using the water in water pump extraction membrane module Outer pressure difference accelerates the efficiency of water filtering.

Detailed description of the invention

Fig. 1 is the flow diagram of the present embodiment；

Fig. 2 is the perspective view that the present embodiment is used to show filtering ponds；

Fig. 3 is the sectional view that the present embodiment is used to show filter cloth；

Fig. 4 is the sectional view that the present embodiment is used to show sliding rail；

Fig. 5 is the structural schematic diagram that the present embodiment is used to show scraper plate；

Fig. 6 is the perspective view that the present embodiment is used to show aeration tank；

Fig. 7 is the sectional view that the present embodiment is used to show baffle；

Fig. 8 is the portion the A enlarged drawing of Fig. 7；

Fig. 9 is the perspective view that the present embodiment is used to show baffle；

Figure 10 is the structural schematic diagram that the present embodiment is used to show driving assembly；

Figure 11 is the structural schematic diagram that the present embodiment is used to show servo motor；

Figure 12 is the perspective view that the present embodiment is used to show membrane bioreactor；

Figure 13 is the sectional view that the present embodiment is used to show membrane module；

Figure 14 is the portion the B enlarged drawing of Figure 13；

Figure 15 is the portion the C enlarged drawing of Figure 13；

Figure 16 is the structural schematic diagram that the present embodiment is used to show the second driving motor；

Figure 17 is the structural schematic diagram that the present embodiment is used to show the second aeration component.

Appended drawing reference: 1, waste-filling pool；11, the first water inlet pipe；2, filtering ponds；21, the first outlet pipe；22, filter cloth；221, rubber Glue gasket；23, the first driving motor；24, scraper plate；241, support frame；242, side baffle；25, villus collecting box；26, fixed Plate；261, cloth rewinder roll；27, sliding rail；271, cushion block；28, upper filter chamber；29, lower filter chamber；3, dosing pond；31, ferrous sulfate Bucket；32, flocculant bucket；33, a heavy pond；4, aeration tank；41, pond body；411, the second water inlet pipe；412, the second outlet pipe；413, First space；414, second space；42, baffle；421, the first inclined-plane；422, the second inclined-plane；423, rotation axis；424, first connects Connect gear；43, driving assembly；431, fixed block；4311, mounting groove；432, rack gear；433, the first worm screw；434, connecting rod； 435, lead screw；436, servo motor；437, the first transmission gear；438, motor gear；439, the first worm gear；44, the first aeration Component；441, the first air compressor machine；442, general pipeline；443, it is in charge of；444, spout；5, secondary settling tank；6, membrane bioreactor；61, film Biological tank；611, third water inlet pipe；62, membrane module；621, cartridge filter；6211, the second connection gear；622, fixing pipe；6221, Through-hole；6222, water pump；623, filter membrane；624, cylinder is clamped；6241, filter hole；63, the second aeration component；631, the first air inlet Pipe；6311, communicating pipe；632, the second air compressor machine；6321, first switch valve；633, the second air inlet pipe；6331, second switch valve； 64, the second driving motor；641, transmission shaft；642, the second transmission gear；643, the second worm gear；644, the second worm screw；7, air bearing Pond；71, aluminium chloride explosive barrel；8, reverse osmosis unit.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

The same or similar label correspond to the same or similar components in the attached drawing of the utility model embodiment；It is practical at this In novel description, it is to be understood that if the orientation or positional relationship for having the instructions such as term " on ", "lower", "left", "right" is It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore retouch in attached drawing The term for stating positional relationship only for illustration, should not be understood as the limitation to this patent, for the common skill of this field For art personnel, the concrete meaning of above-mentioned term can be understood as the case may be.

A kind of dyeing textile sewage disposal system, as shown in Figure 1, successively including waste-filling pool 1, filtering ponds 2, dosing pond 3, one Heavy pond 33, aeration tank 4, secondary settling tank 5, membrane bioreactor 6, flotation tank 7 and reverse osmosis unit 8.It is dirty that production waste is emitted into storage It in pond 1, is then discharged into filtering ponds 2 from waste-filling pool 1 again, the villus impurity in sewage is filtered out using filtering ponds 2.By filtering The sewage that pond 2 is filtered is discharged into dosing pond 3, and flocculant bucket 32 and ferrous sulfate bucket 31, flocculant are fixedly connected on dosing pond 3 High polymer coagulant is housed in bucket 32, decolourized using high polymer coagulant to sewage and removes oil removal.Ferrous sulfate bucket Ferrous sulfate solution is housed in 31, sulphur removal is carried out to sewage using ferrous sulfate.Then sewage discharge is entered in a heavy pond 33, because High polymer coagulant is reacted with overflow dyeing machine and ferrous sulfate reacts with sulfide and generates precipitating, will be mixed with high polymer coagulant Sewage discharge with ferrous sulfate stands clarification into a heavy pond 33, thus the purpose for reaching decoloration, going oil removal and sulphur removal. The clear water in upper layer in one heavy pond 33 is emitted into aeration tank 4, active sludge is cultivated in aeration tank 4, then using pair The method of 4 oxygenation of aeration tank makes the quick flourish of activated sludge, and the quick flourish of activated sludge can consume the carbon in sewage Source, nitrogen source and inorganic salts, to reduce chemical oxygen demand in sewage.Then the sewage in aeration tank 4 is discharged into secondary settling tank 5, Because the water being discharged into secondary settling tank 5 can be mixed with amount of activated sludge, needs carry out secondary precipitation in secondary settling tank 5, then Sewage after secondary precipitation is detected, detection content includes the content of COD and activated sludge.If chemistry needs Oxygen amount and the content of activated sludge reach standard with regard to direct emission, if COD is exceeded or COD and work The content of property sludge is exceeded to be just discharged into sewage in membrane bioreactor 6, is carried out again using membrane bioreactor 6 to sewage Processing.Sewage is drained into flotation tank 7 if the content of the only activated sludge of sewage in secondary settling tank 5 is exceeded, is connected on flotation tank 7 It is connected to aluminium chloride explosive barrel 71, liquor alumini chloridi is added into flotation tank 7 using aluminium chloride explosive barrel 71, reinforces activity using aluminium chloride The aggregation of sludge, flocculation, coagulation, make activated sludge agglomerate, the agglomeration of these activated sludge suspension surface under the action of bubble On.Flotation tank 7 is equipped with mud scraper (not shown), is scraped the agglomeration of 7 water surface activated sludge of flotation tank using mud scraper It walks, to achieve the purpose that the content for reducing activated sludge in sewage.Secondary settling tank 5, flotation tank 7 and membrane bioreactor 6 It is connected to reverse osmosis unit 8, secondary settling tank 5, flotation tank 7 and membrane bioreactor 6 are defeated by the sewage for partially reaching discharge standard It is fed into reverse osmosis unit 8, then water is purified using reverse osmosis unit 8, clear water is reappeared as generation use, and The condensed water generated in reverse osmosis process is discharged into aeration tank 4 and is handled, and realizes the recycling of water, reduces industrial water.

As shown in Fig. 2, waste-filling pool 1 is located at the upper left side of filtering ponds 2, the right positions of waste-filling pool 1 are fixedly connected with first Water inlet pipe 11, the first water inlet pipe 11 is bent downwardly far from one end of waste-filling pool 1 and alignment filter pond 2.2 right positions of filtering ponds It is fixedly connected with the first outlet pipe 21, the first outlet pipe 21 is with dosing pond 3(referring to Fig. 1) it is connected to.2 two sides of filtering ponds and lower section are solid Surely it is connected with fixed plate 26, there are four cloth rewinder rolls 261 for rotation connection in fixed plate 26.Filtering ponds 2 are equipped with filter cloth 22, and filter cloth 22 is the first It is connected and passes through 2 top of filtering ponds, then from 2 side of filtering ponds around to 2 bottom of filtering ponds, finally further around 2 side of filtering ponds 2 top of filtering ponds is returned to, filter cloth 22 is inner to be contacted on one side on cloth rewinder roll 261.Driving cloth rewinder roll is fixedly connected in fixed plate 26 First driving motor 23 of 261 rotations.Filtering ponds 2 are equipped with the scraper plate 24 for removing villus on filter cloth 22 and collect villus Villus collecting box 25, flow on filter cloth 22 under the action of sewage gravity, water enters filtering ponds 2 from the gap on filter cloth 22 In, and villus stays on filter cloth 22 to have the function that remove villus.

As shown in figure 3, the space in filtering ponds 2 is separated into upper 28 He of filter chamber by the filter cloth 22 of 2 top of filtering ponds Lower filter chamber 29, the first outlet pipe 21 are connected to lower filter chamber 29.Sewage enters upper filter chamber 28 from waste-filling pool 1, in gravity It acts on lower sewage to enter in lower filter chamber 29 by filter cloth 22, friction can be applied to the water on filter cloth 22 in 22 rotation process of filter cloth Power keeps water mobile to 22 traffic direction of filter cloth, takes filtering ponds 2 out of by filter cloth 22 so as to cause sewage.In order to solve above-mentioned technology Problem, makes to be bent downwardly by 22 middle position of filter cloth of the top of filtering ponds 2 arc-shaped, and the sewage of 22 top of filter cloth is in gravity It is concentrated under effect on 22 recessed location of filter cloth, when sewage is moved by frictional force along 22 direction of motion of filter cloth by gravity Effect flow downward, using gravitational equilibrium filter cloth 22 to the frictional force of sewage, reduce the dirt for being taken out of filtering ponds 2 by filter cloth 22 Water.

As shown in figure 4, offering T in 2 side wall of filtering ponds to make to keep arc by the filter cloth 22 of 2 top of filtering ponds The sliding rail 27 of shape, 27 middle position of sliding rail are bent downwardly arc-shaped, and 22 two sides of filter cloth are slidably connected to sliding respectively In track 27.The two sides of filter cloth 22 are fixedly connected with the rubber gasket 221 of T shape, and rubber gasket 221 is placed in the sliding of T shape In track 27, the gap between filter cloth 22 and 2 side wall of filtering ponds is sealed using rubber gasket 221, prevents sewage from filter cloth 22 Gap between 2 side wall of filtering ponds flows into filtering ponds 2.Rubber gasket 221 and sliding rail 27 can generate abrasion, reduction The cushion block 271 of polytetrafluoroethylene (PTFE), cushion block 271 are installed in the friction of rubber gasket 221 and sliding rail 27 in sliding rail 27 The T-shaped outer wall in section is adapted to sliding rail 27, and 271 inner wall of cushion block is adapted to cushion block 271.Utilize the cushion block of polytetrafluoroethylene (PTFE) 271 low-friction coefficient, reduces the friction of rubber gasket 221 and sliding rail 27, and then reduces rubber gasket 221 Abrasion.

As shown in figure 5,24 lower end of scraper plate is fixedly connected with support frame 241, support frame 241 is fixedly connected on fixed plate 26 Right side.Scraper plate 24 is inclined to set, and the slanted upper end of scraper plate 24 contacts on filter cloth 22, the inclination lower end aligned villus of scraper plate 24 Collecting box 25, collects villus for convenience, and the width that scraper plate 24 tilts lower end is less than the width of 24 slanted upper end of scraper plate.Villus is inhaled 22 surface of filter cloth is invested, when filter cloth 22 is driven at villus movement to scraper plate 24, scraper plate 24 scrapes villus from filter cloth 22, scraper plate It after 24 scrape villus from filter cloth 22, is slid into villus collecting box 25 along inclined scraper plate 24, reaches and collect villus Purpose.Villus slips away from 24 two sides of scraper plate in order to prevent, and 24 two sides of scraper plate are fixedly connected with side baffle 242.

As shown in fig. 6, aeration tank 4 includes pond body 41, baffle 42, driving assembly 43 and the first aeration component 44.Pond body 41 In the cuboid of upper opening, the second water inlet pipe 411 and the second outlet pipe 412, the second water inlet pipe are fixedly connected in pond body 41 411 be located at 41 left end of pond body top position and 411 other end of the second water inlet pipe connect with a heavy pond 33, the second outlet pipe 412 are located at 41 right end of pond body position on the lower and 412 other end of the second outlet pipe is connected to secondary settling tank 5.It is cultivated in pond body 41 Active sludge (not shown), sewage are entered in pond body 41 by the second water inlet pipe 411, then utilize the first aeration component 44 pass through a large amount of air into sewage, and sufficient oxygen is provided for activated sludge, and activated sludge is quick under sufficient oxygen Flourish is and at the same time nitrogen source and inorganic salts in consumption water reach purified water to reduce the COD in sewage The purpose of matter.

As shown in fig. 7, baffle 42 has multiple and is rotationally connected in pond body 41, all baffles 42, which are located at, is same as horizontal plane On.When all baffles 42 are in the same plane, mutually contradicted between two neighboring baffle 42, the two of left end and right end A baffle 42 and the side wall of pond body 41 contradict, so that it is in the first space 413 and second that baffle 42, which separates 41 inner space of pond body, Space 414.When baffle 42 turns to horizontal position, all baffles 42 are in the same plane and by 413 He of the first space Second space 414 obstructs；But when baffle 42 turns to vertical position, the first space 413 is connected to second space 414.First exposes Pneumatic module 44 is located in second space 414, and the second water inlet pipe 411 and the second outlet pipe 412 are connected to second space 414.It exposes When gas, baffle 42 is rotated counterclockwise to vertical position, is connected to the first space 413 with second space 414, the first aeration component 44 A large amount of air is sprayed onto sewage, activated sludge evolution water quality is accelerated.After aeration, baffle 42 rotates counterclockwise again, makes Two neighboring baffle 42 mutually contradicts；It is then allowed to stand, activated sludge sinks naturally under gravity, and activated sludge is precipitated to On baffle 42；After standing, baffle 42 is made to be clockwise to horizontal position (as shown in the figure), because the overturning of baffle 42 makes to live Property sludge enter in second space 414, and baffle 42 is in horizontal position at this time, so that baffle 42 is by the first space 413 and the The barrier of two spaces 414, activated sludge is closed in second space 414.It is treated in the first space 413 when draining Water discharge reduces the activated sludge along water flow outflow pond body 41 using baffle 42, while reducing lower road sewage treatment process Handle the pressure of sludge.

As shown in Figure 7 and Figure 8, the first aeration component 44 includes the first air compressor machine 441, general pipeline 442 and is in charge of 443, first The air inlet of air compressor machine 441 is communicated with the atmosphere, and the gas outlet of the first air compressor machine 441 is connected to general pipeline 442, is in charge of 443 and always Pipe 442 is connected to, and is in charge of on 443 and is offered multiple spouts 444.When aeration, the first air compressor machine 441 will pass through general pipeline after air pressurized 442 are delivered to and are in charge of 443, then enter in sewage from spraying in the spout 444 being in charge of on 443.It is staticly settled after aeration When, activated sludge is because stirring for baffle 42 is deposited in 41 bottom of pond body, and when next time is aerated, so that water is rolled in bubble uphill process, Activated sludge is only spread in water under water rolling effect, and the effect for influencing sewage treatment slowly is diffused through so as to cause activated sludge Rate.In order to improve the efficiency of sewage treatment, it is located at spout 444 and is in charge of 443 lower sections and towards 41 bottom surface of pond body, when aeration, Compressed air is directly sprayed onto impacting on activated sludge to be formed to activated sludge, accelerates to live to the impact of sludge using air Property sludge is spread in water, improves the efficiency of sewage treatment.

As shown in figure 9,42 both ends of baffle are fixedly connected with rotation axis 423, rotation axis 423 is located at the centre bit of baffle 42 Set, rotation axis 423 is identical at a distance from 42 two sides of baffle, so as to shorten 42 two sides of baffle the radius of gyration, when 42 turns of baffle Reduce the linear velocity of 42 two sides of baffle when dynamic, and then reduce the linear velocity of the activated sludge close to 42 two sides of baffle, further subtracts Activated sludge raises in few 42 rotation process of baffle.It is provided with the first inclined-plane 421 on the right side of baffle 42, the is equipped on the left of baffle 42 Two inclined-planes 422, the first inclined-plane 421 is parallel with the second inclined-plane 422, the of adjacent screen 42 when baffle 42 is in the same plane One inclined-plane 421 and the fitting of the second inclined-plane 422, are increased between two neighboring baffle 42 using the first inclined-plane 421 and the second inclined-plane 422 Contact area, make that two neighboring baffle 42 is bonded it is even closer to reduce draining when the work flowed out from two neighboring baffle 42 Property sludge.

As shown in Figure 10 and Figure 11, it is fixedly connected with fixed block 431 on 41 two sides side wall of pond body, is opened up on fixed block 431 There is mounting groove 4311,423 both ends of rotation axis are each passed through 41 two sides side wall of pond body and are placed through in mounting groove 4311, rotation axis 423 both ends have been fixedly and coaxially connected the first connection gear 424.Driving assembly 43 includes rack gear 432, the first worm gear 439, first Worm screw 433 and servo motor 436.Rack gear 432 is slidably connected in mounting groove 4311 and at the same time with all first connection gears 424 engagements.When 436 drive rack 432 of servo motor is slided, while all first connection gears 424 are driven to rotate, and then simultaneously Drive all baffle 42(referring to figure) rotation.432 one end of rack gear is fixedly connected with lead screw 435, and the first worm gear 439 is threadedly connected to On lead screw 435, the first worm gear 439 is rotationally connected on fixed block 431, and the first worm screw 433 is also rotationally connected with fixed block 431 On, two the first worm screws 433 of 41 two sides of pond body are fixedly and coaxially connected by connecting rod 434, first worm screw on 41 right side of pond body The first transmission gear 437 is fixedly and coaxially connected on 433, servo motor 436 is fixedly connected on the fixed block 431 on right side, watches The main shaft for taking motor 436 is placed through in mounting groove 4311 and has been fixedly and coaxially connected motor gear 438,438 tooth of motor gear Number is less than the first transmission gear 437 and the two engages.When servo motor 436 drives motor gear 438 to rotate, motor gear 438 drive the rotation of the first transmission gear 437, and the first transmission gear 437 drives the rotation of the first worm screw 433, and the first worm screw 433 drives The rotation of first worm gear 439, the rotation of the first worm gear 439 keep all first connection gears 424 same to make rack gear 432 slide Step rotation.Using Worm Wheel System and screw-driven, increase the transmission ratio between servo motor 436 and baffle 42, to make The more stable slow rotation of baffle 42, reducing when baffle 42 rotates raises activated sludge again.

As shown in figure 12, membrane bioreactor 6 includes film biological tank 61, membrane module 62 and the second aeration component 63.Film is raw Active sludge (not shown) is cultivated in object pond 61, is fixedly connected with third water inlet pipe 611 on 61 side wall of film biological tank, the Three water inlet pipes, 611 other end is connected to secondary settling tank 5.Membrane module 62 is rotationally connected with the position in film biological tank 61 close to bottom, Second aeration component 63 is passed through compressed air into film biological tank 61, sufficient oxygen is provided for activated sludge, activated sludge exists Quick flourish is and at the same time consume carbon source, nitrogen source and the inorganic salts in water, to reduce in sewage under sufficient oxygen COD reaches purpose of purifying the water quality.Sewage is filtered using membrane module 62 after the completion of aeration, makes activated sludge It remaines in film biological tank 61, membrane bioreactor 6 is discharged by membrane module 62 in treated water.

As shown in Figure 13 and Figure 14, membrane module 62 includes fixing pipe 622, cartridge filter 621 and filter membrane 623.Fixing pipe 622 Right side for the hollow tubulose with several through-holes 6221, fixing pipe 622 is fixedly connected with 61 side wall of film biological tank.Fixing pipe 622 left ends pass through 61 side wall of film biological tank and extend to outside film biological tank 61.Cartridge filter 621 is rotationally connected with fixing pipe 622 On, filter membrane 623 is located on 621 outer wall of cartridge filter, and coaxial sleeve is equipped with the cramping cylinder with filter hole 6241 on cartridge filter 621 624, it clamps cylinder 624 and is bolted to connection on cartridge filter 621.Filter membrane 623, which is located at, clamps cylinder 624 and cartridge filter 621 Between, filter membrane 623 is fixedly clamped using cartridge filter 621 and cramping cylinder 624.After aeration, effect of the sewage in hydraulic pressure It is lower to be flowed into cartridge filter 621 through filter membrane 623, then entered in fixing pipe 622 by through-hole 6221, finally from fixing pipe Membrane bioreactor 6 is discharged in 622 left end, and activated sludge is obstructed by filter membrane 623 in outside membrane module 62.

As shown in Figure 13 and Figure 15, in filtering, activated sludge can be attached on 623 outer wall of filter membrane to be easy blocking Filter membrane 623.The first air inlet pipe 631 is equipped in order to solve this technical problem in fixing pipe 622.First air inlet pipe 631 Outer diameter be less than fixing pipe 622 inner wall diameter to reduce the obstruction of sewage discharge in fixed cylinder.First air inlet pipe 631 upsides are fixedly connected with several communicating pipes 6311, and the connection of the through-hole 6221 on the upside of communicating pipe 6311 and fixing pipe 622 connects 6311 quantity of siphunculus is less than the quantity of through-hole 6221.The right end of first air inlet pipe 631 is connected to the second aeration component 63.Second exposes Pneumatic module 63 conveys compressed air to the first air inlet pipe 631, and compressed air is entered in cartridge filter 621 by communicating pipe 6311, pressure Contracting air buoyancy and original power act on to from impact on 623 inner wall of filter membrane, and it is raw into film through filter membrane 623 In object pond 61, the activated sludge for being attached to 623 outer wall of filter membrane falls off from filter membrane 623 under compressed air impact, with Cartridge filter 621 is rotated with 2 film of filtering ponds, is cleared up using compressed air entire filter membrane 623.

As shown in figure 16,622 left end of fixing pipe is fixedly connected with water pump 6222, the water inlet and fixing pipe of water pump 6222 The connection of 622 left ends.The water in fixing pipe 622 is extracted out using water pump 6222, so that the hydraulic pressure in membrane module 62 is reduced, thus The pressure difference inside and outside filter membrane 623 is increased, and then increases the filter efficiency of sewage.

As shown in figure 16, fixing coaxial is fixedly connected with the second connection gear 6211,61 side of film biological tank on cartridge filter 621 Transmission shaft 641 is rotatably connected on wall, transmission shaft 641 is fixedly connected with the second driving cog engaged with the second connection gear 6211 Wheel 642,641 one end of transmission shaft pass through 61 side wall of film biological tank and extend to film biological tank 61(referring to Figure 13) outside, transmission shaft 641 one end extended to outside film biological tank 61 have been fixedly and coaxially connected the second worm gear 643, are fixedly connected on 61 outer wall of film biological tank There is the second driving motor 64, the main shaft of the second driving motor 64 is coaxially arranged with the second worm screw engaged with the second worm gear 643 644.Second driving motor 64 drives the rotation of the second worm screw 644, and the second worm screw 644 drives the rotation of the second worm gear 643, the second worm gear 643 drive the rotation of the second transmission gear 642 by transmission shaft 641, and the second transmission gear 642 drives 6211 turns of the second connection gear It moves to rotate cartridge filter 621.

As shown in figure 17, second aeration component 63 include the second air inlet pipe 633 and the second air compressor machine 632, wherein second into Tracheae 633 is fixedly connected on 61 bottom of film biological tank, and the second air inlet pipe 633 is connected with the second air compressor machine 632, the first air inlet Pipe 631 is also connected with the second air compressor machine 632.First air inlet pipe 631 is equipped with first switch valve 6321, the second air inlet pipe Second switch valve 6331 is installed, first switch valve 6321 and second switch valve 6331 are solenoid valve on 633.When aeration, the First switch valve 6321 is closed when two switch valves 6331 are opened, and the second air compressor machine 632 will be delivered to the second air inlet after air pressurized In pipe 633, oxygen is provided for activated sludge subsequently into film biological tank 61.After aeration, first switch valve 6321 is opened When second switch valve 6331 be closed, the second air compressor machine 632 will be delivered in the first air inlet pipe 631 after air pressurized, by sewage Filter membrane 623 is cleared up while membrane bioreactor 6 are discharged.

Specific working mode: production waste is emitted into waste-filling pool 1, is then discharged into filtering ponds 2 from waste-filling pool 1 again, benefit Villus in sewage is filtered out realization with filter cloth 22 to be separated by solid-liquid separation, the villus filtered out is moved to scraper plate 24 along filter cloth 22 Villus on filter cloth 22 is scraped and is fallen by place, scraper plate 24, and the villus scraped slides into villus collecting box 25 along inclined scraper plate 24 In, achieve the purpose that collect villus.

It is discharged into dosing pond 3 by the sewage that filtering ponds 2 filter, high polymer coagulant and sulfuric acid is added in dosing pond 3 Ferrous iron makes it generate precipitating in coloring agent and sulfide reaction, and sewage and precipitating are emitted into stand in a heavy pond 33 and clarified, from And the purpose for reaching decoloration, going oil removal and sulphur removal.

The clear water in upper layer in one heavy pond 33 is emitted into aeration tank 4, sewage enters pond by the second water inlet pipe 411 In body 41, servo motor 436 is controlled, makes it that all baffles 42 be driven to turn to vertical state, keeps the first space 413 and second empty Between 414 connection；Then start the first air compressor machine 441, general pipeline 442 will be passed through after air pressurized using the first air compressor machine 441 and conveyed It to being in charge of 443, then sprays from the spout 444 being in charge of on 443 into sewage, accelerates activated sludge purification water quality.Aeration After, control servo motor 436 rotates counterclockwise baffle 42, contradicts two neighboring baffle 42 mutually；It is then allowed to stand, it is living Property sludge sinks naturally under gravity, and activated sludge is precipitated on baffle 42；After standing, start servo motor 436 driving baffles 42 are clockwise to horizontal position, because the overturning of baffle 42 enters activated sludge in second space 414, And baffle 42 makes activated sludge so that baffle 42 obstructs the first space 413 and second space 414 in horizontal position at this time It is closed in second space 414, treated water discharge when draining in the first space 413 is reduced using baffle 42 along water The activated sludge of stream outflow aeration tank 4.

Sewage in aeration tank 4 is discharged into secondary settling tank 5 and carries out secondary precipitation, then the sewage after secondary precipitation is carried out The detection of COD and the content of activated sludge.It is straight if the content of COD and activated sludge reaches standard Run in and put, it is raw that sewage is discharged into film if COD is exceeded or COD and the content of activated sludge are exceeded In object reactor 6.Using carbon source, nitrogen source and inorganic salts in activated sludge consumption activated sludge, to reduce the chemistry in sewage Oxygen demand reaches purpose of purifying the water quality.Then sewage is filtered using membrane module 62, so that activated sludge is remained in film raw In object pond 61, membrane bioreactor 6 is discharged by membrane module 62 in treated water.After aeration, work of the sewage in hydraulic pressure It is flowed into cartridge filter 621, is then entered in fixing pipe 622 by through-hole 6221, finally from fixing pipe through filter membrane 623 with lower Membrane bioreactor 6 is discharged in 622 left end, and activated sludge is obstructed by filter membrane 623 in outside membrane module 62；While draining Compressed air is conveyed to the first air inlet pipe 631 using the second aeration component 63, compressed air enters filtering by communicating pipe 6311 In cylinder 621, compressed air acts in buoyancy and original power and, on 623 inner wall of filter membrane, is attached to filter membrane to from impact The activated sludge of 623 outer walls falls off from filter membrane 623 under compressed air impact, as cartridge filter 621 is with 2 film of filtering ponds Rotation, clears up entire filter membrane 623 using compressed air.

Sewage is drained into flotation tank 7 if the content of the only activated sludge of sewage in secondary settling tank 5 is exceeded, flotation tank 7 It is connected with aluminium chloride explosive barrel 71 on flotation tank 7, reinforces aggregation, the flocculation, coagulation of activated sludge using aluminium chloride, makes activated sludge Agglomeration makes the activated sludge of agglomeration float up to the water surface, using mud scraper by the agglomeration of water surface activated sludge using air bearing principle It blows off, to achieve the purpose that the content for reducing activated sludge in sewage.

Secondary settling tank 5, flotation tank 7 and membrane bioreactor 6 enter the sewage transport for partially reaching discharge standard reverse osmosis In device 8, then water is purified using reverse osmosis unit 8, clear water is reappeared as generation use, and in reverse osmosis process The condensed water of generation is discharged into aeration tank 4 and is handled, and realizes the recycling of water, reduces industrial water.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but As long as all by the protection of Patent Law in the scope of the claims of the utility model.

Claims (8)

1. the membrane bioreactor that one kind is cleared up automatically, including film biological tank (61), the interior rotation connection of the film biological tank (61) There are membrane module (62), it is characterized in that: the membrane module (62) includes fixing pipe (622), cartridge filter (621) and filter membrane (623), The cartridge filter (621) is rotationally connected on fixing pipe (622), and the filter membrane (623), which is set to, to be rolled on cylinder side wall, described Fixing pipe (622) offers several through-holes (6221), is equipped with the first air inlet pipe (631) in the fixing pipe (622), and described first Air inlet pipe (631) is connected with the second air compressor machine (632).

2. the membrane bioreactor that one kind according to claim 1 is cleared up automatically, it is characterized in that: the cartridge filter (621) On be arranged with the cramping cylinder (624) with filter hole (6241), the filter membrane (623) is located at cartridge filter (621) and clamps cylinder (624) between.

3. the membrane bioreactor that one kind according to claim 2 is cleared up automatically, it is characterized in that: the cartridge filter (621) It has been fixedly and coaxially connected the second connection gear (6211), the film biological tank (61) is rotatably connected to transmission shaft (641), the biography Moving axis (641) is fixedly connected with the second transmission gear (642) engaged with the second connection gear (6211), the film biological tank (61) it is equipped with the second driving motor (64) of driving transmission shaft (641) rotation.

4. the membrane bioreactor that one kind according to claim 3 is cleared up automatically, it is characterized in that: the transmission shaft (641) One end passes through film biological tank (61) side wall and extends to film biological tank (61) outside, and the transmission shaft (641) extends to film biology The one end of pond (61) outside has been fixedly and coaxially connected the second worm gear (643), the main shaft coaxial arrangement of second driving motor (64) There is the second worm screw (644) engaged with the second worm gear (643).

5. the membrane bioreactor that one kind according to claim 4 is cleared up automatically, it is characterized in that: the fixing pipe (622) It is connected with water pump (6222), the water inlet of the water pump (6222) is connected to fixing pipe (622).

6. the membrane bioreactor that one kind according to claim 5 is cleared up automatically, it is characterized in that: first air inlet pipe (631) several communicating pipes (6311) are equipped with, the connection of the through-hole (6221) of the communicating pipe (6311) and fixing pipe (622), Communicating pipe (6311) quantity is less than the quantity of through-hole (6221).

7. the membrane bioreactor that one kind according to claim 6 is cleared up automatically, it is characterized in that: the film biological tank (61) Bottom is equipped with the second air inlet pipe (633), and second air inlet pipe (633) is connected to the second air compressor machine (632).

8. the membrane bioreactor that one kind according to claim 7 is cleared up automatically, it is characterized in that: first air inlet pipe (631) first switch valve (6321) being equipped with, second air inlet pipe (633) is equipped with second switch valve (6331), and described first Switch valve (6321) and second switch valve (6331) are solenoid valve, when the first switch valve (6321) open when described in second Switch valve (6331) closure, first switch valve (6321) closure when the second switch valve (6331) is opened.