CN211521745U - Sewage treatment equipment based on MBBR technology - Google Patents
Sewage treatment equipment based on MBBR technology Download PDFInfo
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- CN211521745U CN211521745U CN201922484645.8U CN201922484645U CN211521745U CN 211521745 U CN211521745 U CN 211521745U CN 201922484645 U CN201922484645 U CN 201922484645U CN 211521745 U CN211521745 U CN 211521745U
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Abstract
The utility model relates to the field of sewage treatment, in particular to sewage treatment equipment based on MBBR technology, which comprises a treatment box, wherein the treatment box is sequentially arranged from left to right and is communicated with an anoxic tank, an aerobic tank and a dosing tank, a rotating shaft is rotatably connected in the dosing tank, the upper part of the rotating shaft is in splined connection with a sleeve, the lower part of the sleeve is hinged with a plurality of stirring rods along the circumferential direction, and an elastic part is fixed between each stirring rod and the outer wall of the sleeve; a plurality of groups of first through holes are vertically arranged on the sleeve, each group of first through holes are uniformly distributed along the circumferential direction of the sleeve, the rotating shaft is hollow, a plurality of second through holes matched with the first through holes are arranged on the rotating shaft, a sliding plate is vertically and slidably connected in the rotating shaft, a connecting rod is fixed between the sliding plate and the inner wall of the sleeve, a plurality of liquid outlet holes are circumferentially arranged on the lower portion of the rotating shaft, a channel communicated with the liquid outlet holes is arranged on the side wall of the rotating shaft, and one end, away from the liquid outlet holes; the lower part of the rotating shaft is provided with a liquid inlet hole. Adopt the utility model discloses a scheme can solve the difficult problem of adding the medicine dephosphorization to the comparatively homogenization of a large amount of sewage.
Description
Technical Field
The utility model relates to a sewage treatment field, concretely relates to sewage treatment device based on MBBR technique.
Background
Domestic sewage is mainly discharged water generated by various kitchen water, washing water and toilet water used in human life, is mainly nontoxic inorganic salts, contains a large amount of suspended solid, chemically or biologically degradable soluble or colloidal dispersed organic matters, nitrogen-containing compounds, phosphate, potassium, sodium, heavy metal ions, bacteria and biological groups and the like. Organic nitrogen and ammonia nitrogen in water can consume dissolved oxygen in water, so that the water body is blackened and smelled; excessive nitrogen and phosphorus in the water body can cause eutrophication of the water body and worsen the water environment. In this regard, the national authorities have made increasingly strict controls on the nitrogen and phosphorus levels in wastewater.
Moving bed biofilm process (MBBR) also came into play, and the MBBR process originated in Norway in the first 90 th century, and is the international mature sewage biochemical treatment technology at present. Since the first set of biological moving bed process units was built in 1989, thousands of municipal and industrial waste (sewage) water treatment facilities have been built in more than 50 countries, with good results. The process uses the suspended filler as a growth carrier for microorganisms, and realizes the high-efficiency treatment of sewage through the sufficient fluidization of the suspended filler. The process fully draws the advantages of biological contact oxidation and a biological fluidized bed, overcomes the defects of low mass transfer efficiency, poor treatment efficiency, high fluidization power and the like, fully utilizes the advantages of an activated sludge method by applying the basic principle of a biomembrane method, and realizes the operation of the activated sludge mode of the biomembrane process.
At present, the MBBR process flow is that sewage is discharged after being sequentially introduced into an anoxic tank, an aerobic tank, a dosing tank and a sedimentation tank, the precipitated sludge in the sedimentation tank needs to flow back into the anoxic tank and the aerobic tank for continuous reaction, suspended fillers are arranged in the anoxic tank and the aerobic tank, phosphorus is removed mainly in a biological phosphorus removal mode, and the phosphorus removal effect is not ideal enough.
Therefore, in the prior art, a dephosphorization liquid medicine is added into a medicine adding tank, secondary auxiliary dephosphorization is carried out in a chemical dephosphorization mode, and then the dephosphorization requirement is met. However, the total amount of sewage in the dosing tank is large, the sewage and the liquid medicine are difficult to be fully mixed after dosing, and dosing and phosphorus removal of a large amount of sewage are difficult to be homogenized.
SUMMERY OF THE UTILITY MODEL
To the not enough that exists among the prior art, the utility model provides a sewage treatment device based on MBBR technique to solve the difficult problem of adding the medicine dephosphorization to the comparatively homogenization of a large amount of sewage.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a sewage treatment device based on an MBBR technology comprises a treatment box, wherein the treatment box is sequentially arranged from left to right and is communicated with an anoxic tank, an aerobic tank and a dosing tank, suspended fillers are arranged in the anoxic tank and the aerobic tank, a rotating shaft is rotatably connected in the dosing tank, a sleeve is connected to the upper part of the rotating shaft through a spline, a nut is connected to the outer wall of the sleeve through a thread, and the nut is fixed to the top of the treatment box; a plurality of stirring rods are hinged to the sleeve along the circumferential direction, and an elastic part is fixed between each stirring rod and the outer wall of the sleeve; a plurality of first through holes are formed in the sleeve along the circumferential direction, the rotating shaft is hollow, a plurality of second through holes matched with the first through holes are formed in the rotating shaft, a sliding plate is vertically and slidably connected in the rotating shaft, a connecting rod is fixed between the sliding plate and the inner wall of the sleeve, a plurality of liquid outlet holes are formed in the lower portion of the rotating shaft along the circumferential direction, a channel communicated with the liquid outlet holes is formed in the side wall of the rotating shaft, one end, away from the liquid outlet holes, of the channel is communicated with the second through holes, and; the lower part of the rotating shaft is provided with a liquid inlet hole, a liquid inlet one-way valve is arranged in the liquid inlet hole, and the liquid inlet hole is communicated with a dosing box for storing liquid medicine.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. make sleeve vertical screw motion when the pivoted through the lead screw pair, the puddler rotates along with the sleeve and is vertical motion simultaneously, and the puddler articulates on the sleeve, and the puddler receives water pressure effect and then takes place to deflect when up-and-down motion, realizes the constantly changing of puddler stirring range, enlarges the stirring scope, and then makes liquid medicine and sewage mix more evenly, and the reaction is more abundant.
2. When the sleeve moves upwards, the slide plate is driven by the connecting rod to move upwards, the space at the lower part of the rotating shaft is increased, the liquid medicine in the medicine feeding box is pumped into the rotating shaft, when the sleeve moves downwards, the slide plate is driven to move downwards, the space at the lower part of the rotating shaft is reduced, the pressure intensity is increased, when the first through hole and the second through hole have overlapped parts, the liquid medicine in the channel is sprayed out under the action of pressure, according to the Bernoulli principle, the flow speed of the sprayed liquid medicine is gradually reduced along with the increasing overlapping area of the first through hole and the second through hole, so that in the process that the first through hole and the second through hole are overlapped gradually and separated gradually, the flow velocity of the liquid medicine is changed from big to small and then big, the distance of the liquid medicine is changed by the change of the flow velocity of the liquid medicine, the liquid medicine can be sprayed to different positions in the medicine adding pool, so that the liquid medicine spraying range is wider, and the liquid medicine can be better mixed with sewage.
3. Because pivot and sleeve are in the rotation in-process, so the liquid medicine also rotates to spray out, and the liquid medicine that sprays out can form less swirl in sewage, and along with the motion of puddler, the liquid medicine sprays out and just is mixxed the dispersion by the puddler, and both mutually support, and then make liquid medicine and sewage mixed reaction more abundant.
Furthermore, the first through hole is vertically setting up the multiunit along the sleeve, and the second through hole also vertically sets up the multiunit along the pivot.
Has the advantages that: through vertical setting multiunit first through-hole, second through-hole, the increase liquid medicine can spray the scope.
Furthermore, the elastic part is a corrugated pipe, and a third through hole is formed in the corrugated pipe.
Has the advantages that: the puddler deflects the in-process and drives the bellows and lengthens or compress, and then makes the inside space size of bellows change, space grow in the bellows, in sewage accessible third through-hole entering bellows around the bellows, space in the bellows diminishes, sewage in the bellows passes through the third through-hole and discharges, sewage is through the process change of business turn over bellows position in adding the medicine pond, the stirring of cooperation puddler, further realize the mixture of sewage and liquid medicine.
Furthermore, the sedimentation tank middle part is equipped with can be sealed apopore, and the sedimentation tank bottom is equipped with can be sealed mud hole, and the sedimentation tank outer wall is located apopore and the equal lateral sliding connection in mud hole department has the baffle, is fixed with the connecting rod between two baffles.
Has the advantages that: can slide two baffles simultaneously through the connecting rod, two baffles can block apopore, mud hole simultaneously, also can open apopore, mud hole simultaneously for mud fully deposits the back in the sedimentation tank, opens apopore, mud hole simultaneously again and carries out the drainage and arrange mud.
Furthermore, a fixing rod is circumferentially fixed below the stirring rods on the sleeve, the vertical projection of the fixing rod is located between the adjacent stirring rods, and the horizontal projection of the fixing rod is located between the adjacent groups of first through holes.
Has the advantages that: the stirring range is enlarged by additionally arranging the fixing rod, the stirring dead angle is reduced, and the mixing reaction of the liquid medicine and the sewage is further more sufficient.
Further, the dead lever is the telescopic link, and the free end of dead lever and add the medicine pond inner wall and paste.
Has the advantages that: the free end of dead lever can scrape the mud of dosing tank inner wall adhesion for the adhesion can break away from the dosing tank inner wall and fall to the dosing tank bottom at the mud of dosing tank inner wall, is convenient for finally discharge mud. And the fixed rod is set as a telescopic rod, so that different shapes of the inner wall of the dosing pool can be met, and the inner wall of the dosing pool is not limited to be cylindrical.
Drawings
Fig. 1 is a top view of an embodiment of the present invention.
Figure 2 is the front section view of the dosing tank in the embodiment of the utility model.
Fig. 3 is a side view of the sedimentation tank in an embodiment of the present invention.
In the figure: the device comprises a treatment box 1, a dosing tank 2, a partition plate 3, a rotating shaft 4, a sleeve 5, a nut 6, a stirring rod 7, a corrugated pipe 8, a sliding plate 9, a connecting rod 10, a strip-shaped groove 11, a first through hole 12, a second through hole 13, a channel 14, a liquid outlet hole 15, a rod body 16, a telescopic part 17, a fixing rod 18, a spring 19, a wedge block 20, an anoxic tank 21, an aerobic tank 22, an aerator 23, a baffle 24, a water inlet 25, a connecting rod 26 and a sedimentation tank 27.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, and specific embodiments will be given.
As shown in figure 1, a sewage treatment device based on MBBR technique, including handling case 1, it has three baffles 3 to handle case 1 internal fixation, baffle 3 will handle case 1 and separate for from a left side to right oxygen deficiency pond 21, good oxygen pond 22, add medicine pond 2 and sedimentation tank 27, be equipped with a plurality of sieve meshes on the baffle 3, all be equipped with the suspension filler in oxygen deficiency pond 21 and the good oxygen pond 22, the suspension filler sets up to the commonly used means of current MBBR technique, can refer to patent "an integrated MBBR integration sewage treatment device" that application number is 201820377477.5 specifically, do not describe in this application again.
A water inlet 25 is arranged on the left side of the anoxic tank 21, a stirrer is arranged in the anoxic tank 21, sewage enters the anoxic tank 21 from the water inlet 25, and the sewage is primarily reacted with the suspended filler through the stirrer in an anoxic environment of the anoxic tank 21; the aerator 23 is installed at the bottom of the aerobic tank 22, the jet aerator 23 is selected for the specific aerator 23, sewage enters the aerobic tank 22 through the partition plate 3 between the anoxic tank 21 and the aerobic tank 22 and reacts with suspended fillers in the aerobic tank 22 under the aeration effect of the aerator 23, and the reaction processes of the sewage in the anoxic tank 21 and the aerobic tank 22 are common means of the conventional MBBR technology, which is not described in detail in this embodiment. Sewage enters the dosing tank 2 through the partition plate 3 between the aerobic tank 22 and the dosing tank 2, and the dosing mechanism is installed in the dosing tank 2. Sewage adds in medicine liquid mixture back through adding medicine 2 and the sedimentation tank 27 in adding medicine pond 2 in the baffle 3 entering sedimentation tank 27 between, it is shown to combine figure 3, sedimentation tank 27 middle part is equipped with the apopore that can seal, the sedimentation tank bottom is equipped with the mud hole that can seal, it is concrete, 27 outer walls of sedimentation tank are located apopore and the equal lateral sliding connection in mud hole department has baffle 24, be fixed with connecting rod 26 between two baffle 24, can slide two baffles 24 simultaneously through connecting rod 26, two baffles 24 can block the apopore simultaneously, the mud hole, also can open the apopore simultaneously, the mud hole.
Combine shown in fig. 2, add medicine mechanism including rotating the pivot 4 of connection in adding medicine pond 2, 4 upper ends of pivot run through and handle case 1 top and extend to handle outside the case 1, 4 upper portion splined connection of pivot have sleeve 5, 5 upper ends of sleeve also run through and handle case 1 and extend to handle outside the case 1, 5 upper portions of sleeve are equipped with the screw thread section, threaded connection has nut 6 in the screw thread section, nut 6 is fixed at handling case 1 top, it is fixed with and is used for driving 4 pivoted motors of pivot to handle case 1 top, the output shaft and the 4 tops of pivot of motor are fixed.
Along the vertical first through-hole 12 that is equipped with the multiunit on the sleeve 5, 5 circumference equipartitions are all followed to the first through-hole 12 of every group, install out liquid check valve in the first through-hole 12, be equipped with a plurality of and first through-hole 12 complex second through-hole 13 on 4 cavity of pivot and the pivot 4, 4 lower parts of pivot are equipped with a plurality of liquid holes 15 along circumference, 4 lateral walls of pivot are equipped with the passageway 14 with go out liquid hole 15 intercommunication, the one end and the second through-hole 13 intercommunication of liquid hole 15 are kept away from to passageway 14, when first through-hole 12 and second through-hole 13 coincide, the inside liquid of pivot 4 can loop through out liquid hole 15, passageway 14, second through-hole 13, discharge behind first through-hole 12. Vertical sliding connection has slide 9 in pivot 4, and slide 9 upper end is fixed with the connecting rod 10 that is the L style of calligraphy, and 4 upper portions of pivot are equipped with vertical bar groove 11, and the connecting rod 10 upper end inserts in bar groove 11 and fixes at 5 inner walls of sleeve. 4 lower parts of pivot are equipped with the feed liquor hole, and the downthehole feed liquor check valve of installing of feed liquor, when pressure reduces in pivot 4, outside liquid can get into in the pivot 4 through the feed liquor check valve, and the feed liquor hole has the case of dosing that is used for storing the liquid medicine through the pipeline intercommunication, and the case of dosing is fixed at 1 outer wall of processing case, and operating personnel can regularly to the incasement supplementary liquid medicine of dosing.
The lower part of the sleeve 5 is hinged with a plurality of stirring rods 7 along the circumferential direction, an elastic part is fixed between the stirring rods 7 and the outer wall of the sleeve 5, the elastic part is a corrugated pipe 8, and a third through hole is formed in the corrugated pipe 8. The vertical projection of the stirring rod 7 is positioned between each group of adjacent first through holes 12. Fixed rods 18 are circumferentially fixed on the sleeve 5 below the stirring rods 7, the projections of the fixed rods 18 in the vertical direction are positioned between the adjacent stirring rods 7, and the projections of the fixed rods 18 in the transverse direction are positioned between the adjacent groups of the first through holes 12. The dead lever 18 is the telescopic link, and is specific, and dead lever 18 includes body of rod 16 and the pars contractilis 17 of cover on the body of rod 16, is fixed with spring 19 between pars contractilis 17 and the body of rod 16, and pars contractilis 17 free end is fixed with voussoir 20, and the tip of voussoir 20 pastes with the interior wall of medicine pond 2 mutually.
The working process of the sewage in the dosing tank 2 is as follows:
the motor drives the rotating shaft 4 to rotate positively during positive rotation, the rotating shaft 4 drives the sleeve 5 to rotate through the spline connection, meanwhile, the sleeve 5 and the nut 6 form a screw pair, the sleeve 5 moves upwards through the screw pair, the sleeve 5 drives the sliding plate 9 to move upwards through the connecting rod 10 during upward movement, the space at the lower part of the rotating shaft 4 is enlarged, and liquid medicine in the medicine feeding box is pumped to enter the rotating shaft 4.
When the motor rotates reversely, the rotating shaft 4 is driven to rotate reversely, the sleeve 5 moves downwards through the screw pair, the sliding plate 9 is driven to move downwards when the sleeve 5 moves downwards, the space at the lower part of the rotating shaft 4 is reduced, the pressure intensity is increased, at the moment, the first through hole 12 is gradually close to the second through hole 13 along with the downward movement of the sleeve 5 and is gradually superposed and then gradually separated, when the first through hole 12 and the second through hole 13 have superposed parts, the liquid medicine in the channel 14 is outwards sprayed under the action of the pressure intensity, according to the Bernoulli principle, the flow speed of the liquid medicine sprayed out is gradually reduced along with the increasing superposed area of the first through hole 12 and the second through hole 13, the flow speed of the liquid medicine sprayed out is changed from large to large in the process that the first through hole 12 and the second through hole 13 are gradually superposed and gradually separated, the distance of the liquid medicine sprayed out is changed due to the change of the flow speed of the liquid medicine, namely, and set up vertical multiunit first through-hole 12, second through-hole 13 simultaneously for liquid medicine injection range is wider, so that better and sewage mix.
Meanwhile, puddler 7, dead lever 18 all is vertical screw motion simultaneously along with sleeve 5's rotation, puddler 7 articulates on sleeve 5, puddler 7 receives the water pressure effect when last up-and-down motion, upwards deflect during the puddler 7 downstream, downwards deflect during the puddler 7 upstream motion, realize the constantly changing of puddler 7 stirring scope, puddler 7 deflects the in-process and drives bellows 8 and lengthen or compress, and the setting of bellows 8 has also avoided puddler 7 to make progress or deflect the angle downwards too big and receive the water pressure effect deflection speed too fast and then lead to having lost the stirring effect. Space grow in the bellows 8 when 8 elongations of bellows, in the sewage accessible third through-hole entering bellows 8 around 8, space in the bellows 8 diminishes when 8 compressions of bellows, and sewage in the bellows 8 is discharged through the third through-hole, and sewage passes through the position of process change in the medicine pond 2 of business turn over bellows 8, and the stirring of cooperation puddler 7, the better mixture of realization sewage and liquid medicine of ability.
Sewage gets into sedimentation tank 27 after adding medicine 2 internal reaction, after deposiing in sedimentation tank 27, slides two baffles 24 simultaneously through connecting rod 26 for apopore, mud outlet all open, and the water on sedimentation tank 27 upper portion is discharged through the apopore, and the mud of sedimentation tank 27 lower part is discharged through mud outlet.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (6)
1. The utility model provides a sewage treatment device based on MBBR technique, includes the processing case, sets gradually and the intercommunication has oxygen deficiency pond, good oxygen pond, adds medicine pond and sedimentation tank from a left side to the right side to the processing case, all is equipped with the suspension in oxygen deficiency pond and the good oxygen pond and packs its characterized in that: a rotating shaft is rotatably connected in the dosing tank, a sleeve is connected to the upper portion of the rotating shaft through a spline, a nut is connected to the outer wall of the sleeve through threads, and the nut is fixed to the top of the treatment box; a plurality of stirring rods are hinged to the sleeve along the circumferential direction, and an elastic part is fixed between each stirring rod and the outer wall of the sleeve; a plurality of first through holes are formed in the sleeve along the circumferential direction, the rotating shaft is hollow, a plurality of second through holes matched with the first through holes are formed in the rotating shaft, a sliding plate is vertically and slidably connected in the rotating shaft, a connecting rod is fixed between the sliding plate and the inner wall of the sleeve, a plurality of liquid outlet holes are formed in the lower portion of the rotating shaft along the circumferential direction, a channel communicated with the liquid outlet holes is formed in the side wall of the rotating shaft, one end, away from the liquid outlet holes, of the channel is communicated with the second through holes, and; the lower part of the rotating shaft is provided with a liquid inlet hole, a liquid inlet one-way valve is arranged in the liquid inlet hole, and the liquid inlet hole is communicated with a dosing box for storing liquid medicine.
2. The MBBR technology-based sewage treatment plant according to claim 1, wherein: the first through holes are vertically provided with a plurality of groups along the sleeve, and the second through holes are also vertically provided with a plurality of groups along the rotating shaft.
3. The MBBR technology-based sewage treatment plant according to claim 1, wherein: the elastic piece is a corrugated pipe, and a third through hole is formed in the corrugated pipe.
4. The MBBR technology-based sewage treatment plant according to claim 1, wherein: the sedimentation tank is characterized in that a closable water outlet hole is formed in the middle of the sedimentation tank, a closable mud outlet hole is formed in the bottom of the sedimentation tank, baffles are transversely and slidably connected to the positions, located at the water outlet hole and the mud outlet hole, of the outer wall of the sedimentation tank, and a connecting rod is fixed between the two baffles.
5. The MBBR technology-based sewage treatment plant according to claim 1, wherein: and a fixed rod is circumferentially fixed below the stirring rods on the sleeve, the vertical projection of the fixed rod is positioned between the adjacent stirring rods, and the horizontal projection of the fixed rod is positioned between the adjacent groups of first through holes.
6. The MBBR technology-based sewage treatment plant according to claim 5, wherein: the dead lever is the telescopic link, and the free end of dead lever pastes with the inner wall of medicine cell.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922484645.8U CN211521745U (en) | 2019-12-31 | 2019-12-31 | Sewage treatment equipment based on MBBR technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922484645.8U CN211521745U (en) | 2019-12-31 | 2019-12-31 | Sewage treatment equipment based on MBBR technology |
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| CN211521745U true CN211521745U (en) | 2020-09-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111018113A (en) * | 2019-12-31 | 2020-04-17 | 重庆阁林环保科技有限公司 | Sewage treatment equipment based on MBBR technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111018113A (en) * | 2019-12-31 | 2020-04-17 | 重庆阁林环保科技有限公司 | Sewage treatment equipment based on MBBR technology |
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