CN201261741Y

CN201261741Y - Intelligent variable frequency rotating self-cleaning low pollution membrane bioreactor

Info

Publication number: CN201261741Y
Application number: CNU2008200241313U
Authority: CN
Inventors: 程镇虎
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-06-13
Filing date: 2008-06-13
Publication date: 2009-06-24
Anticipated expiration: 2018-06-13

Abstract

The utility model provides an intelligent frequency-conversion rotary self-cleaning low-pollution membrane bioreactor which comprises a water tank, a rotating filter cylinder, a draining pump, a bio-carrier and a sludge collection funnel; a partition board is arranged in the water tank, and the inner space of the water tank is divided by the partition board into a biological purification zone and a circulatory filtering zone; the bio-carrier and the sludge collection funnel are arranged in the biological purification zone; the bio-carrier is arranged above the sludge collection funnel; the rotating filter cylinder is arranged in the circulatory filtering zone; and the draining pump is arranged outside the water tank. Compared with the traditional immersed MBR, the intelligent frequency-conversion rotary self-cleaning low-pollution membrane bioreactor provided by the utility model has the following advantages: A, the water production efficiency is improved by 50%, the auxiliary water ratio is reduced by 50%, the backwashing cycle is reduced by 100%; B, the energy consumption is reduced by 40%, the operating cost is reduced by 40-50%; and C, the service life is prolonged by 50-100%. Therefore, the utility model is of better value for popularization and utilization.

Description

The low polluted membrane bio-reactor of a kind of intelligent frequency-conversion rotation automatically cleaning

Technical field

The utility model relates to a kind of water treating equipment, the low polluted membrane bio-reactor of specifically a kind of intelligent frequency-conversion rotation automatically cleaning.

Background technology

The water treating equipment kind is a lot, and the deficiency that known existing various water treating equipment in use exist is that floor space is big, processing efficiency is low, and power consumption is high, maintenance cost height or the like.

Summary of the invention

The purpose of this utility model provides a kind of intelligent frequency-conversion rotation automatically cleaning simple in structure, that floor space is little, water treatment efficiency is high, saving maintenance cost level of automation is high and hangs down the polluted membrane bio-reactor.

The low polluted membrane bio-reactor of intelligent frequency-conversion rotation automatically cleaning of the present utility model, its structure is made up of water tank, rotating filter cartridge, wet-pit, bio-carrier and mud collection funnel, be provided with dividing plate in the water tank water tank internal space is divided into biopurification district and circulating filtration district, bio-carrier and mud collection funnel are arranged on the biopurification district, rotating filter cartridge is arranged on the circulating filtration district, and wet-pit is arranged on outside the water tank.

Rotating filter cartridge is made up of cylindrical shell, variable-frequency motor and impeller, cylindrical shell by tube at the bottom of and cover form, at the bottom of filter membrane is fixed on tin and on the cylindrical of cover, a tubular shaft that has a posticum is run through at the cylindrical shell center, the upper end of tubular shaft is connected with variable-frequency motor, the lower end is connected with the water-in of wet-pit by rising pipe, also is provided with the water screw impeller in the lower end of tubular shaft.

Excellent effect of the present utility model is:

1) the film device processing and fabricating is become cylindrical, the different radiuses of rotation place is provided with the film silk of different densities, makes device be tending towards reasonable more; Owing to adopt the measure of interlayer curable epoxide, the intensity of film device is further strengthened simultaneously, membrane lifetime further prolongs.

2) adopt rotation mode, make film be subjected to the scouring force and the shearing force of two vertical direction in the process of operation, removing is polluted more effectively and is reliable.

3) adopt the intelligent frequency-conversion technology, come the rotating speed of automatic regulating device and the pumping power of suction pump according to the pollution level of film device, if the pollution of film has weighed, the intelligent frequency-conversion system accelerates the rotating speed of film device automatically and reduces the pumping power of suction pump, to delay pollution; If the pollution of film is light, intelligent frequency-conversion system automatically accelerate the to slow down rotating speed of film device and the suction frequency that improves suction pump changeed, to improve membrane flux; Whole process to the beginning is controlled at a relatively demulcent scope with the pollution of film and the decay of membrane flux in ground extremely eventually, has prolonged the work-ing life of film.

4) be provided with the impeller that pumps up water, utilize the principle of water pump impeller, the strength that raises up that produces when rotated produces the power that raises up of water, wash away and clear the pollution off, replaced traditional aeration and removed the method for polluting (working cost of submergence integral type MBR membrane bioreactor 96% comes from aeration) and greatly reduce working cost and improved operational efficiency.

The low polluted membrane bio-reactor of intelligent frequency-conversion rotation automatically cleaning of the present utility model is compared with traditional immersion MBR:

A: produce water efficient and improve 50%, auxiliary water ratio reduces by 50%, and the backwash cycle reduces by 100%;

B: energy consumption reduces by 40%, and working cost reduces 40-50%;

C: prolong 50-100% work-ing life.

Description of drawings

Accompanying drawing 1 is the structural representation of the low polluted membrane bio-reactor of intelligent frequency-conversion rotation automatically cleaning.

Description of reference numerals: water screw impeller 1, wet-pit 2, water tank 3, filter membrane 4, cover 5, variable-frequency motor 6, dividing plate 7, bio-carrier 8, mud collection funnel 9, sewage draining exit 10, water vent 11, tubular shaft 12, the tube end 13.

Embodiment

Concrete principle of work of the present utility model is as follows:

In waste water enters into reaction tank, by on filler, cultivating the organism of the ripe microbiological deterioration overwhelming majority, settling after the biological degradation is discharged by mud discharging mouth, and the water of biochemical degradation has entered into the low polluted membrane bio-reactor of intelligent frequency-conversion rotation automatically cleaning bottom by wing passage, and wet-pit is obtained the resource utilization fresh water of required usefulness by suction; Rotating machine is under the control of frequency transformer, be rotated, the impeller that pumps up water will stir the water of bottom in the middle of membrane module and pass through, and make the pollutent that is deposited on the film surface produce two axial and tangential shearing forces and difficult attached to the film surface, and along with the direction of current comes back to the filling space place.The suction frequency of wet-pit and the rotation frequency of rotating machine are subjected to producing the control of water wall pressure, make it produce reverse feedback control, for wet-pit, when pressure (negative pressure) increases, reduce the suction frequency, prevent that excessive extracting force from producing the film that is difficult to recover and stopping up; For rotating machine, when pressure (negative pressure) increases, increase the frequency of rotation, the souring of utilizing water to be strengthening attached to the axial and tangential shearing dynamics of film surface contaminant, thereby whole device is moved under the condition comparatively efficiently at one.

Embodiment

The low polluted membrane bio-reactor of intelligent frequency-conversion rotation automatically cleaning of the present utility model, its structure is made up of water tank 3, rotating filter cartridge, wet-pit 2, bio-carrier 8 and mud collection funnel 9, be provided with dividing plate 7 in the water tank 3 water tank 3 internal spaces are divided into biopurification district and circulating filtration district, bio-carrier 8 and mud collection funnel 9 are arranged on the biopurification district, rotating filter cartridge is arranged on the circulating filtration district, and wet-pit 2 is arranged on outside the water tank 3.

Rotating filter cartridge is made up of cylindrical shell, variable-frequency motor 6 and impeller 1, cylindrical shell by tube at the bottom of 13 and cover 5 form, at the bottom of filter membrane 4 is fixed on tin 13 and the cylindrical of cover 5 on, a tubular shaft 12 that has a posticum 11 is run through at the cylindrical shell center, the upper end of tubular shaft 12 is connected with variable-frequency motor 6, the lower end is connected by the water-in of rising pipe with wet-pit 2, also is provided with water screw impeller 1 in the lower end of tubular shaft 12.

The circulation of water for convenience, dividing plate 7 upper limbs in the water tank 3 are not under the water surface, and lower rim had the mouth of a river.

In order to adapt to the water treating equipment of different treatment amount, can plural water tank 3 in parallel or polyphone settings.

In order to adapt to the water treating equipment of different treatment amount, can also multiple tracks dividing plate 7 be set in water tank 3, a plurality of biopurifications district or a plurality of circulating filtrations district are set.

The discharging of mud for convenience, the bottom of mud collection funnel 9 is provided with wash water valve 10.

Claims

1, the low polluted membrane bio-reactor of a kind of intelligent frequency-conversion rotation automatically cleaning, it is characterized in that forming by water tank, rotating filter cartridge, wet-pit, bio-carrier and mud collection funnel, be provided with dividing plate in the water tank water tank internal space is divided into biopurification district and circulating filtration district, bio-carrier and mud collection funnel are arranged on the biopurification district, bio-carrier is arranged on the top of mud collection funnel, rotating filter cartridge is arranged on the circulating filtration district, and wet-pit is arranged on outside the water tank.

2, membrane bioreactor according to claim 1, it is characterized in that rotating filter cartridge is made up of cylindrical shell, variable-frequency motor and impeller, cylindrical shell by tube at the bottom of and cover form, at the bottom of filter membrane is fixed on tin and on the cylindrical of cover, a tubular shaft that has a posticum is run through at the cylindrical shell center, the upper end of tubular shaft is connected with variable-frequency motor, and the lower end is connected with the water-in of wet-pit by rising pipe, also is provided with the water screw impeller in the lower end of tubular shaft.

3, membrane bioreactor according to claim 1 is characterized in that dividing plate upper limb in the water tank not under the water surface, and lower rim had the mouth of a river.

4, membrane bioreactor according to claim 1 is characterized in that two are arranged in parallel with upper water box.

5, membrane bioreactor according to claim 1 is characterized in that being provided with at least one in the water tank dividing plate.

6, membrane bioreactor according to claim 1 is characterized in that being provided with at least in the water tank biopurification district or a circulating filtration district.

7, membrane bioreactor according to claim 1 is characterized in that the bottom of mud collection funnel is provided with wash water valve.