CN205472910U

CN205472910U - Multistage manifold type fluidized bed reactor and aerobic biochemical treatment processing apparatus

Info

Publication number: CN205472910U
Application number: CN201620250525.5U
Authority: CN
Inventors: 吕荣湖; 张红岩
Original assignee: CHINA UNIVERSITY OF POLITICAL SCIENCE AND LAW; China University of Petroleum Beijing; China National Petroleum Corp
Current assignee: CHINA UNIVERSITY OF POLITICAL SCIENCE AND LAW; China University of Petroleum Beijing; China National Petroleum Corp
Priority date: 2016-03-29
Filing date: 2016-03-29
Publication date: 2016-08-17
Anticipated expiration: 2026-03-29

Abstract

The utility model provides a multistage manifold type fluidized bed reactor and aerobic biochemical treatment processing apparatus. This multistage manifold type fluidized bed reactor is open container, including interior barrel, guide plate, interstage division board, aeration head and mixed liquid outlet perforated plate. The aforesaid is used for the aerobic biochemical treatment processing apparatus of the decarbonization of denitrogenation simultaneously mainly to comprise multistage manifold type fluidized bed reactor and two heavy pond two parts, multistage manifold type fluidized bed reactor with two heavy ponds are passed through the mixed liquid outlet path connection. Use the utility model discloses a processing apparatus can improve process flow's treatment effeciency and denitrogenation decarbonization effect, effectual reduction energy consumption and treatment cost, effectual improvement loading and unloading capacity.

Description

A kind of multistage manifold type fluidized-bed reactor and aerobic biochemical treatment device

Technical field

This utility model relates to the aerobic treatment of a kind of multistage manifold type fluidized-bed reactor and simultaneously denitrification and decarburization Device, belongs to environment protection sewage processing means technical field.

Background technology

Interior circulation three-phase bio-reactor is a kind of efficient useless to seek processing equipment, fluid bed with inner barrel for up-flow district, As Jiang Liu district between outer cylinder body and inner barrel, inner barrel is risen, at fall stream by carry under one's arms current and biologic grain of aeration District's current and biologic grain decline, and define interior circulation, reach the purpose making bio-carrier fluidize.As such, it is possible to Improve mass transfer rate and the replacing speed of carrier biofilm of material, increase biological activity, be conducive to improving sewage disposal Ability.When needs increase treating capacity, barrel diameter increase cylinder height can be amplified and i.e. increase reactor volume in fact Show, but increase with inner barrel diameter, will be formed and fluidize required air capacity general's substantial increase completely, the unit water yield Power consumption will increase, and height is affected by blower pressure and the limiting of hydrostatic, and can not be made the highest, thus Have impact on the expansion for the treatment of capacity, therefore, the fluid bed of single-cylinder type generally is suitable for the little water yield and processes.In order to meet big yield The needs that waste water processes, researchers propose a kind of Multi-tube composite fluid bed.So-called Multi-tube composite fluid bed, Refer to arrange that one group of stripping tube selecting quantity is as interior by the requirement for the treatment of capacity using certain arrangement mode in biochemistry pool Cylinder, installs an aeration head bottom each inner barrel, forms ascending zone by aeration and carry under one's arms current in inner barrel And biologic grain rises, form Jiang Liu district current outside inner barrel and between outer cylinder body and biologic grain declines, define The interior circulation of local, reaches the purpose making bio-carrier fluidize.The biochemistry pool of such one group of stripping tube composition, it is simply that Can be used for the fluidized-bed reactor of the multitube air stripping of the low energy consumption that big yield processes.

Chinese patent (Authorization Notice No.: CN 101450830 B) utilizes this knockdown interior circulation three-phase biologic anti- Answer device, by controlling aeration rate and utilizing the cyclic process of liquid stream, realize inner barrel inner-outer circulation repeatedly aerobic with Anoxia process, thus the denitrification functions of nitrification and denitrification can be realized in a reaction tank.But, this patent uses Be biomembrane fixed bed, be not fluid bed.

Chinese patent (Authorization Notice No.: CN 2500675 Y) use Multi-tube composite fluid bed, with sand grains, haydite, The particulate matters such as activated carbon are as biofilm carrier, it is achieved that efficient wastewater biological fluidized bed processing effect, waterpower is stopped The time is stayed to be only 10-20/mono-of activated sludge process.Multi-tube composite fluidized-bed reactor used, at inner barrel Between not do not separate, so will result in biofilm particles problem pockety in whole reactor, at outlet Near will appear from granule bulk deposition phenomenon and between each inner barrel unhurried current region pile up phenomenon, impact The treatment effect of fluid bed.

Utility model content

For solve above-mentioned technical problem, the purpose of this utility model be to provide a kind of multistage manifold type fluidized-bed reactor and The aerobic biochemical treatment device of denitrification and decarburization simultaneously, it is achieved activation biologic grain is at whole multistage manifold type fluidized-bed reaction Fluidisation it is uniformly distributed in device.

In order to achieve the above object, this utility model provides a kind of multistage manifold type fluidized-bed reactor, this multistage coupling Box-like fluidized-bed reactor is uncovered container, including inner barrel, deflector, inter-stage demarcation strip, aeration head and mixing Liquid outlet porous plate；

This multistage manifold type fluidized-bed reactor is provided with water inlet and mixture export passage；

Inner barrel is vertically set in fluidized-bed reactor, arranges inter-stage demarcation strip between the inner barrel that each two is adjacent, Inter-stage demarcation strip constitutes primary unit fluid bed together with an inner barrel；The bottom of each inter-stage demarcation strip is provided with tool Having the aperture of certain pore size, the aperture of this aperture is less than the particle diameter of activation biologic grain, and the effect of aperture is to allow mixed liquor Pass through, but stop activation biologic grain to pass and enter in next unit fluid bed, it is to avoid activation biologic grain Accumulation；

The upper end of each inter-stage demarcation strip is connected with 2 pieces of deflectors, to obtain more preferable water circulation fluidised form；

It is provided with aeration head below each inner barrel, activated sludge and activation biologic grain can be made at inner core by aeration Internal portion rises, and then flows downward in space between the wall and described inter-stage demarcation strip of inner barrel, forms local Interior circulation (as it is shown in figure 1, arrow represent be loop direction), each inner barrel is formed together with inter-stage demarcation strip One independent interior circulation three-phase biologic unit fluid bed, by sharing an inter-stage demarcation strip, by two unit fluidisations Bed is of coupled connections together；

Mixture export porous plate it is provided with, it is to avoid it is anti-that activation biologic grain flows out fluid bed at mixture export passage Answer device, improve the utilization rate of activation biologic grain, reach more preferable denitrification and decarburization effect.

At above-mentioned multistage manifold type fluidized-bed reactor, deflector can be obliquely installed preferably to guide the side of current To, it is preferable that described deflector is mutually arranged in 60 ° of angles, is 150 ° of angles with described inter-stage demarcation strip.Described Deflector can be connected with the wall of described multistage manifold type fluidized-bed reactor.

At above-mentioned multistage manifold type fluidized-bed reactor, it is preferable that described inner barrel number is at least 3, described exposure Gas head number is at least 3, and described inter-stage demarcation strip number is at least 2.It addition, according to the increasing of wastewater treatment capacity Add, it is also possible to increase the number of unit fluid bed.

This utility model additionally provide a kind of for while denitrification and decarburization aerobic biochemical treatment device, it is mainly by above-mentioned Multistage manifold type fluidized-bed reactor and second pond two parts composition；Above-mentioned multistage manifold type fluidized-bed reactor is with upper State second pond to be connected by described mixture export passage.

Multistage manifold type biochemical treatment apparatus of the present utility model is in every one-level unit stream bed, and current present the most mixed Box-like fluidised form；And from processing means on the whole, current present ladder-type plug-flow state.It is possible not only to obtain the highest Mass-transfer efficiency, can obtain stable effluent quality, at same aerobe reactor, it is achieved aerobe simultaneously The purpose of method decarburization denitrogenation simultaneously.

Accompanying drawing explanation

Fig. 1 is the structural representation of biochemical treatment apparatus.

Reference numeral illustrates:

1 inner barrel 2 deflector

3 inter-stage demarcation strip 4 apertures

5 aeration head 6 mixture export porous plates

7 mixture export passage 8 second ponds

9 water inlet 10 fluidized-bed reactors

Detailed description of the invention

Embodiment

Present embodiments provide the biochemical treatment apparatus of a kind of aerobic biochemical simultaneously denitrification and decarburization, its structure such as Fig. 1 institute Showing, it is mainly made up of multistage manifold type fluidized-bed reactor 10 and second pond 8 two parts.Multistage manifold type fluidizes Bed reactor 10 is uncovered container, including inner barrel, deflector 2, inter-stage demarcation strip 3, aeration head and mixed liquor Outlet porous plate 6；

This multistage manifold type fluidized-bed reactor 10 is provided with water inlet 9 and mixture export passage, fluidized-bed reaction Device 10 is connected by mixture export passage with second pond 8；

Inner barrel is vertically set in fluidized-bed reactor 10, arranges inter-stage and divide between the inner barrel 1 that each two is adjacent Dividing plate 3, the bottom of each inter-stage demarcation strip 3 is provided with the aperture 4 with certain pore size, and the aperture of this aperture 4 is little Particle diameter in activation biologic grain；

The upper end of each inter-stage demarcation strip 3 is connected with 2 pieces of deflectors 2, and deflector 2 is mutually arranged in 60 ° of folders Angle, with inter-stage demarcation strip 3 in 150 ° of angles；

It is provided with aeration head 5 below each inner barrel 1；Each inner barrel 1 forms one together with inter-stage demarcation strip 3 Independent interior circulation three-phase biologic unit fluid bed, by sharing an inter-stage demarcation strip 3, by two unit fluid beds It is of coupled connections together；The number of inner barrel 1 is 3, and the number of aeration head 5 is 3, inter-stage demarcation strip 3 Number be 2；

Mixture export porous plate 6 it is provided with at mixture export passage.

In multistage manifold type fluidized-bed reactor 10, add the activated sludge of suspended state by MLSS=3g/L simultaneously and press In fluid bed, the ratio of the 5%-1% of wastewater volume adds activation biologic grain；Waste water is at water inlet 9 and from second pond 8 The activated sludge that backflow comes is mixed to form mixed liquor, enters in first order unit fluid bed, in unit fluid bed Activation biologic grain fluidizes together with mixed liquor, and biodegradation occurs simultaneously.Place in certain time of staying After reason, mixed liquor is flowed into second level unit fluid bed relaying by being provided with the inter-stage demarcation strip 3 of aperture 4 in bottom Continuous biodegradation process, by that analogy, until after carrying out biodegradation process in afterbody unit fluid bed, mixed Close liquid and flow out fluidized-bed reactor 10 from mixture export passage, entrance second pond 8 is carried out settlement separate, by upper Clear liquid is discharged, and amount of activated mud flows back in first order unit fluid bed, and residual active sludge is discharged from second pond 8. Activation biologic grain in unit fluid beds at different levels is maintained in unit fluid bed at different levels.

Claims

1. a multistage manifold type fluidized-bed reactor, it is characterised in that this multistage manifold type fluidized-bed reactor is Uncovered container, including inner barrel, deflector, inter-stage demarcation strip, aeration head and mixture export porous plate；

Described multistage manifold type fluidized-bed reactor is provided with water inlet and mixture export passage；

Described inner barrel is vertically set in fluidized-bed reactor, arranges described between the described inner barrel that each two is adjacent Inter-stage demarcation strip, described inter-stage demarcation strip constitutes primary unit fluid bed together with a described inner barrel；Each described The bottom of inter-stage demarcation strip is provided with aperture, and the aperture of described aperture is less than the particle diameter of activation biologic grain；Each described The upper end of inter-stage demarcation strip is provided with 2 pieces of described deflectors；

It is provided with aeration head below each described inner barrel；

Each described inner barrel forms an independent interior circulation three-phase biologic unit stream together with described inter-stage demarcation strip Change bed, by sharing a described inter-stage demarcation strip, two described unit fluid beds are of coupled connections together；

Described mixture export porous plate is arranged at described mixture export passage.

Multistage manifold type fluidized-bed reactor the most as claimed in claim 1, it is characterised in that each described inter-stage Two pieces of described deflectors of demarcation strip upper end are mutually arranged in 60 ° of angles, are 150 ° of angles with described inter-stage demarcation strip.

Multistage manifold type fluidized-bed reactor the most as claimed in claim 1, it is characterised in that described inner barrel Number is at least 3, and described aeration head number is at least 3, and described inter-stage demarcation strip number is at least 2.

4. the aerobic biochemical treatment device for denitrification and decarburization simultaneously, it is characterised in that this is used for denitrogenation simultaneously The aerobic biochemical treatment device of decarburization is mainly by the multistage manifold type fluidized-bed reactor described in any one of claim 1-3 Form with second pond two parts；

Described multistage manifold type fluidized-bed reactor is connected by described mixture export passage with described second pond.