CN112645444A - Integrated denitrification deep bed filter - Google Patents
Integrated denitrification deep bed filter Download PDFInfo
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- CN112645444A CN112645444A CN202110082168.1A CN202110082168A CN112645444A CN 112645444 A CN112645444 A CN 112645444A CN 202110082168 A CN202110082168 A CN 202110082168A CN 112645444 A CN112645444 A CN 112645444A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/286—Anaerobic digestion processes including two or more steps
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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Abstract
An integrated denitrification deep bed filter tank relates to the technical field of sewage treatment. For solving the current deep bed filtering pond area great, occupy a large amount of sewage factory land, pour into a large amount of treatment agent into deep bed and strain inside, can't make sewage and treatment agent fully contact, lead to the relatively poor effect of nitrogen and phosphorus removal, the problem of the clearance of being not convenient for. Adopt a plurality of denitrification deep bed filtering ponds to arrange side by side, form integrated form denitrification deep bed filtering pond, divide into a plurality of miniature denitrification deep bed filtering ponds with original large-scale denitrification deep bed filtering pond, and with the treatment agent respectively pour into miniature denitrification deep bed filtering pond in, guarantee the concentration of treatment agent in every miniature denitrification deep bed filtering pond, effectual sewage and treatment agent carry out abundant contact, throw the sodium acetate storage tank in the room through the carbon source, carry the carbon source to denitrification deep bed filtering pond, increase the carbon concentration in the sewage, thereby reach better nitrogen and phosphorus removal effect. The invention is suitable for the technical field of sewage treatment.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to an integrated denitrification deep bed filter.
Background
China starts to implement the pollutant discharge standard of urban sewage treatment plants GB18918-2002 from 7/1/2003, and has stricter regulations on the effluent BOD5, COD, SS, TN, NH3-N, TP and coliform bacteria number of the sewage treatment plants. The existing sewage treatment plants in China mostly adopt the traditional activated sludge method, equipment is aged, and the existing sewage treatment plants face the problem of standard improvement.
At present, in order to implement the water pollution prevention and control law of the people's republic of China, strengthen the management of the construction and operation of urban sewage treatment plants, and improve the water environment quality of cities and towns, environmental protection departments at all levels of China generally require that the sewage treatment plants strictly execute the first-class A standard GB18918-2002 of pollutant discharge standard of urban sewage treatment plants, and the A standard of the first-class standard is executed when the effluent of the urban sewage treatment plants is required to be discharged into closed and semi-closed water areas such as key drainage areas, lakes, reservoirs and the like determined by the nation and province. Therefore, the existing sewage treatment process is perfected or a new more efficient sewage treatment technology is developed, and the established sewage treatment plant is improved in standard, so that the sewage treatment plant becomes an urgent task for a wide range of maintainers.
The deep bed filter tank is a sewage treatment process integrating physical filtration and biological membrane oxidation after a common activated sludge process, removes SS pollutants mainly comprising activated sludge in a physical filtration mode, establishes a more suitable biological environment, completes biological denitrification and denitrification, and can synchronously perform micro-flocculation chemical phosphorus removal.
In conclusion, the existing deep-bed filter tank has large area, occupies a large amount of land for sewage plants, injects a large amount of treatment reagents into the deep-bed filter tank, cannot make sewage fully contact with the treatment reagents, and has poor denitrification and dephosphorization effects, and after the deep-bed filter tank is used for a long time, a large amount of impurities are remained on the inner wall of the deep-bed filter tank, so that the deep-bed filter tank is inconvenient to clean.
Disclosure of Invention
The invention provides an integrated denitrification deep-bed filter tank, aiming at solving the problems that the existing deep-bed filter tank has larger area, occupies a large amount of land for sewage plants, injects a large amount of treatment reagent into the deep-bed filter tank, cannot make sewage fully contact with the treatment reagent, causes poor denitrification and dephosphorization effects, and is inconvenient to clean because a large amount of impurities are remained on the inner wall of the deep-bed filter tank after the deep-bed filter tank is used for a long time.
The invention discloses an integrated denitrification deep-bed filter, which comprises n denitrification deep-bed filters, a water inlet mixing tank, a dosing room, an air blower room and a carbon source dosing room, wherein n is a positive integer;
the n denitrification deep-bed filter tanks are arranged in parallel, the bottom of each denitrification deep-bed filter tank is provided with a discharge pipeline, the discharge pipeline is provided with n discharge branch pipes along the circumferential outer surface, each discharge branch pipe is connected with a discharge port at the bottom of the denitrification deep-bed filter tank, a dosing room, an air blower room and a carbon source adding room are sequentially arranged near the row of denitrification deep-bed filter tanks from left to right, the output end of the dosing room is connected with one end of the dosing pipeline, the other end of the dosing pipeline is communicated with one end of the discharge pipeline, the output end of the air blower room is connected with one end of an exhaust pipeline, the other end of the exhaust pipeline is closed, the exhaust pipeline is provided with n ventilation branch pipes along the circumferential outer surface, each ventilation branch pipe is connected with a ventilation opening of the denitrification deep-bed filter tank, the output end of the carbon source adding room is connected with one end of a conveying pipeline, each transportation branch pipe is connected with a feeding port of the denitrification deep bed filter, one side of a row of denitrification deep bed filters is provided with a water inlet mixing tank, and the water inlet mixing tank is communicated with the denitrification deep bed filter;
furthermore, each denitrification deep bed filter is provided with a cleaning unit; the cleaning unit comprises a driving motor, a roller, a sliding block, a transmission shaft, a rectangular sliding rail, a hairbrush, a fixed bracket and an ultrasonic generator; the top end of the denitrification deep bed filter is provided with a rectangular slide rail, each arc-shaped corner of the rectangular slide rail is fixedly connected with the top corner of the denitrification deep bed filter through a fixing support, two sides inside the slide block are respectively provided with a transmission shaft, each transmission shaft is provided with a roller, the rollers are fixedly connected with the transmission shafts through key grooves, the rectangular slide rail is arranged between the two rollers, the top of the slide block is provided with a driving motor, the top end of one transmission shaft is fixedly connected with an output shaft of the driving motor, the bottom end face of one transmission shaft is provided with a counter bore, the top end face of the hairbrush is provided with a boss, the boss at the top of the hairbrush is inserted into the counter bore at the bottom end of one transmission shaft and is fixedly connected with the counter bore through a;
furthermore, a power distribution cabinet is arranged between the blower room and the carbon source adding room and used for supplying power to the adding room, the blower room, the carbon source adding room and the ultrasonic generator;
furthermore, the dosing room comprises a sodium hypochlorite storage tank and a dosing pump, the edge of the top end of the sodium hypochlorite storage tank is hinged with one end of the cover, the bottom of the side surface of the sodium hypochlorite storage tank is provided with a discharge port, the discharge port is connected with the dosing pump through a pipeline, and the output end of the dosing pump is connected with one end of a dosing pipeline;
further, a sodium acetate storage tank is arranged in the carbon source adding room, a discharge port at the bottom of the sodium acetate storage tank is connected with one end of a conveying pipeline through a pipeline, and a control valve is arranged at the discharge port at the bottom of the sodium acetate storage tank;
further, the blower room comprises a blower, an air compressor, a refrigeration dryer and an air storage tank; the output end of the air compressor is connected with the input end of the cold dryer through an exhaust pipe, the output end of the cold dryer is connected with the input end of the air storage tank through an exhaust pipe, and the air compressor, the cold dryer and the air storage tank are used for supplying air to a pneumatic valve in the denitrification deep bed filter; the output end of the blower is connected with one end of an exhaust pipeline through an exhaust pipe;
further, n is more than or equal to 6 and less than or equal to 10;
further, the inner diameter of the discharge pipeline is 20 cm-40 cm;
further, the inner diameter of the discharge pipeline is 30 cm;
further, the volume of the sodium hypochlorite storage tank is 50L-150L;
further, when the device is used, sewage flows into the denitrification deep-bed filter tanks through the water inlet mixing tank, and sodium hypochlorite stored in the sodium hypochlorite storage tank is conveyed into the denitrification deep-bed filter tanks through the dosing pumps in the dosing rooms; air is supplied to all pneumatic valves in the integral denitrification deep bed filter tank through an air compressor, a cold dryer and an air storage tank in the blower room; air is supplied to the denitrification deep bed filter tank through an air blower in an air blower room, so that the back flushing of the filter tank is completed;
the power distribution cabinet is used for supplying power to the dosing room, the blower room, the carbon source dosing room and the ultrasonic generator; the carbon source is conveyed to the denitrification deep bed filter tank through a sodium acetate storage tank in the carbon source adding room, so that the carbon concentration in the sewage is increased, and a better nitrogen and phosphorus removal effect is achieved;
an ultrasonic generator is arranged at the center of the bottom end in each denitrification deep-bed filter, the denitrification deep-bed filters are used for a long time, clean water flows into a plurality of denitrification deep-bed filters through a water inlet mixing tank, adding a carbon source into a sodium acetate storage tank in the room, conveying the carbon source into the denitrification deep bed filter tank, mixing with water, removing the residual impurities on the interior of the denitrification deep bed filter by using ultrasonic waves, starting an ultrasonic generator for 30-60 minutes, and starting a driving motor, the driving motor drives a transmission shaft to rotate, the transmission shaft drives a roller and a brush to rotate, so that the sliding block moves on the rectangular sliding rail, so that the edge of the brush is contacted with the inner wall of the denitrification deep bed filter, when the slide block moves for five to ten times on the rectangular slide rail, the cleaning of the denitrification deep bed filter 12 can be completed, and the liquid in the denitrification deep bed filter is discharged through a discharge pipeline after the cleaning is completed; after the cleaning unit is used for a long time, the brush can be replaced;
when the hairbrush is replaced, the pin at the contact position of the transmission shaft and the top of the hairbrush is taken out, the counter bore at the bottom end of the transmission shaft is pulled out of the boss at the top of the hairbrush, the boss at the top of the new hairbrush is inserted into the counter bore at the bottom end of one of the transmission shafts, the pin is inserted, and replacement is completed at the moment.
Compared with the prior art, the invention has the following beneficial effects:
the invention overcomes the defects of the prior art, adopts a plurality of denitrification deep-bed filter tanks which are arranged in parallel, thereby forming an integrated denitrification deep-bed filter tank, divides the original large denitrification deep-bed filter tank into a plurality of small denitrification deep-bed filter tanks, and respectively injects treatment reagents into the small denitrification deep-bed filter tanks, thereby ensuring the concentration of the treatment reagents in each small denitrification deep-bed filter tank, effectively and fully contacting sewage and the treatment reagents, and conveying a carbon source to the denitrification deep-bed filter tanks through a sodium acetate storage tank in a carbon source adding room, thereby increasing the carbon concentration in the sewage, and further achieving better denitrification and dephosphorization effects;
an ultrasonic generator is arranged at the center of the bottom end in each denitrification deep-bed filter, the denitrification deep-bed filters are used for a long time, clean water flows into a plurality of denitrification deep-bed filters through a water inlet mixing tank, adding a carbon source into a sodium acetate storage tank in the room, conveying the carbon source into the denitrification deep bed filter tank, mixing with water, removing the residual impurities on the interior of the denitrification deep bed filter by using ultrasonic waves, starting an ultrasonic generator for 30-60 minutes, and starting a driving motor, the driving motor drives a transmission shaft to rotate, the transmission shaft drives a roller and a brush to rotate, so that the sliding block moves on the rectangular sliding rail, therefore, the edge of the brush is in contact with the inner wall of the denitrification deep bed filter, and when the sliding block moves on the rectangular sliding rail for five to ten times, the denitrification deep bed filter can be cleaned conveniently.
Drawings
FIG. 1 is a schematic plan view of an integrated denitrification deep bed filter according to the invention;
FIG. 2 is a sectional view of the denitrification deep-bed filter according to the invention.
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 1, and the integrated denitrification deep bed filter according to the embodiment comprises n denitrification deep bed filters 12, a water inlet mixing tank 11, a dosing room 1, a blower room 2 and a carbon source dosing room 3, wherein n is a positive integer;
the n denitrification deep bed filters 12 are arranged in parallel, a discharge pipeline is arranged at the bottom of the denitrification deep bed filter 12, n discharge branch pipes are arranged on the discharge pipeline along the circumferential outer surface, each discharge branch pipe is connected with a discharge port at the bottom of the denitrification deep bed filter 12, a dosing chamber 1, an air blower chamber 2 and a carbon source adding chamber 3 are sequentially arranged near the row of denitrification deep bed filters 12 from left to right, the output end of the dosing chamber 1 is connected with one end of the dosing pipeline, the other end of the dosing pipeline is communicated with one end of the discharge pipeline, the output end of the air blower chamber 2 is connected with one end of an exhaust pipeline, the other end of the exhaust pipeline is closed, n ventilation branch pipes are arranged on the circumferential outer surface of the exhaust pipeline, each ventilation branch pipe is connected with a ventilation opening of the denitrification deep bed filter 12, the output end of the carbon source adding chamber 3 is connected with one end of a conveying, n transport branch pipes are arranged on the outer circumferential surface of the transport pipeline, each transport branch pipe is connected with a feeding port of the denitrification deep bed filter 12, one side of a row of denitrification deep bed filters 12 is provided with a water inlet mixing tank 11, and the water inlet mixing tank 11 is communicated with the denitrification deep bed filter 12;
in the specific embodiment, when in use, sewage flows into the denitrification deep-bed filter tanks 12 through the water inlet mixing tank 11, and sodium hypochlorite stored in the sodium hypochlorite storage tank 4 is conveyed into the denitrification deep-bed filter tanks 12 through the dosing pump 13 in the dosing room 1; air is supplied to all pneumatic valves in the integral denitrification deep bed filter tank through an air compressor 5, a cold dryer 6 and an air storage tank 7 in the blower room 2; air is supplied to the denitrification deep bed filter 12 through an air blower 8 in the air blower room 2, so that the filter backwashing is completed; the power distribution cabinet 9 is used for supplying power to the dosing room 1, the blower room 2, the carbon source dosing room 3 and the ultrasonic generator; a carbon source is conveyed to a denitrification deep bed filter 12 through a sodium acetate storage tank 10 in the carbon source adding room 3, so that the carbon concentration in the sewage is increased, and a better denitrification and dephosphorization effect is achieved;
after long-term use of the denitrification deep bed filter 12, clean water flows into a plurality of denitrification deep bed filters 12 through a water inlet mixing tank 11, a carbon source is added into a sodium acetate storage tank 10 in a room 3, the carbon source is conveyed into the denitrification deep bed filters 12 to be mixed with the water, an ultrasonic generator at the bottom end of each denitrification deep bed filter 12 is started, impurities remained in the denitrification deep bed filters 12 are removed by ultrasonic waves, the ultrasonic generator is started for 30-60 minutes, a driving motor 12-1 is started, the driving motor 12-1 drives a transmission shaft 12-4 to rotate, the transmission shaft 12-4 drives a roller 12-2 and a brush 12-6 to rotate, a sliding block 12-3 moves on a rectangular sliding rail 12-5, and therefore the edge of the brush 12-6 is in contact with the inner wall of the denitrification deep bed filter 12, when the slide block 12-3 moves for five to ten times on the rectangular slide rail 12-5, the cleaning of the denitrification deep bed filter 12 can be completed, and the liquid in the denitrification deep bed filter 12 is discharged through a discharge pipeline after the cleaning is completed; after the cleaning unit is used for a long time, the brush can be replaced;
when the brush 12-6 is replaced, the pin at the contact part of the transmission shaft 12-4 and the top of the brush 12-6 is taken out, the boss at the top of the brush 12-6 is pulled out of the counter bore at the bottom end of the transmission shaft 12-4, the boss at the top of the new brush 12-6 is inserted into the counter bore at the bottom end of one of the transmission shafts 12-4, and the pin is inserted, so that the replacement is completed at the moment.
The second embodiment is as follows: the present embodiment is described with reference to fig. 1, and the present embodiment is a further limitation of the denitrification deep-bed filter according to the first embodiment, and an integrated denitrification deep-bed filter according to the present embodiment is provided with a cleaning unit on each denitrification deep-bed filter 12;
the cleaning unit comprises a driving motor 12-1, a roller 12-2, a sliding block 12-3, a transmission shaft 12-4, a rectangular sliding rail 12-5, a brush 12-6, a fixed support 12-7 and an ultrasonic generator 12-8;
the top end of the denitrification deep bed filter 12 is provided with a rectangular slide rail 12-5, each arc corner of the rectangular slide rail 12-5 is fixedly connected with the top corner of the denitrification deep bed filter 12 through a fixed bracket 12-7, two sides inside a slide block 12-3 are respectively provided with a transmission shaft 12-4, each transmission shaft 12-4 is provided with a roller 12-2, the roller 12-2 is fixedly connected with the transmission shaft 12-4 through a key slot, the rectangular slide rail 12-5 is arranged between the two rollers 12-2, the top of the slide block 12-3 is provided with a driving motor 12-1, the top end of one transmission shaft 12-4 is fixedly connected with an output shaft of the driving motor 12-1, the bottom end face of one transmission shaft 12-4 is provided with a counter bore, and the top end face of a brush 12-6 is provided with a lug boss, a boss at the top of the brush 12-6 is inserted into a counter bore at the bottom end of one of the transmission shafts 12-4 and is fixedly connected with the counter bore through a pin, and an ultrasonic generator 12-8 is arranged at the center of the bottom end in the denitrification deep bed filter 12;
in the specific embodiment, an ultrasonic generator is arranged at the center of the bottom end in each denitrification deep-bed filter, the denitrification deep-bed filters are used for a long time, clean water flows into a plurality of denitrification deep-bed filters through a water inlet mixing tank, a carbon source is added into a sodium acetate storage tank in a room, the carbon source is conveyed into the denitrification deep-bed filters, is mixed with the water, impurities remained in the denitrification deep-bed filters are removed by using ultrasonic waves, the ultrasonic generator is started for 30-60 minutes, a driving motor 12-1 is started, the driving motor 12-1 drives a transmission shaft 12-4 to rotate, the transmission shaft 12-4 drives a roller 12-2 and a brush 12-6 to rotate, a sliding block 12-3 moves on a rectangular sliding rail 12-5, and the edge of the brush 12-6 is contacted with the inner wall of the denitrification deep-bed filter 12, when the slide block 12-3 moves five to ten times on the rectangular slide rail 12-5, the cleaning of the denitrification deep bed filter can be completed, and the cleaning is convenient in the mode.
The third concrete implementation mode: the embodiment is described with reference to fig. 1, and is a further limitation of the deep bed denitrification filter according to the first embodiment, in the embodiment, a power distribution cabinet 9 is arranged between the blower room 2 and the carbon source adding room 3, and the power distribution cabinet 9 is used for supplying power to the chemical adding room 1, the blower room 2, the carbon source adding room 3 and the ultrasonic generator.
The fourth concrete implementation mode: the embodiment is described with reference to fig. 1, and the embodiment is a further limitation of the denitrification deep-bed filter according to the first embodiment, in the embodiment, the dosing room 1 includes a sodium hypochlorite storage tank 4 and a dosing pump 13, an edge of a top end of the sodium hypochlorite storage tank 4 is hinged to one end of a cover, a discharge port is arranged at a bottom of a side surface of the sodium hypochlorite storage tank 4, the discharge port is connected with the dosing pump 13 through a pipeline, and an output end of the dosing pump 13 is connected with one end of a dosing pipeline;
this kind of embodiment, this kind of structure is convenient for import the inside of denitrification deep bed filtering pond 12 with sodium hypochlorite, makes sodium hypochlorite fully contact with sewage.
The fifth concrete implementation mode: the embodiment is described with reference to fig. 1, and the embodiment is a further limitation of the denitrification deep-bed filter according to the first embodiment, in the integrated denitrification deep-bed filter according to the embodiment, a sodium acetate storage tank 10 is arranged inside the carbon source adding room 3, a discharge port at the bottom of the sodium acetate storage tank 10 is connected with one end of a conveying pipeline through a pipeline, and a control valve is arranged at the discharge port at the bottom of the sodium acetate storage tank 10;
in the specific embodiment, a control valve is arranged at the discharge outlet at the bottom of the sodium acetate storage tank 10, so that the input amount of sodium acetate can be conveniently controlled.
The sixth specific implementation mode: the present embodiment is described with reference to fig. 1, and the present embodiment is a further limitation of the denitrification deep bed filter according to the first embodiment, and the integrated denitrification deep bed filter according to the present embodiment includes a blower room 2 including a blower 8, an air compressor 5, a freeze dryer 6 and an air storage tank 7; the output end of the air compressor 5 is connected with the input end of the cold dryer 6 through an exhaust pipe, the output end of the cold dryer 6 is connected with the input end of the air storage tank 7 through an exhaust pipe, and the air compressor 5, the cold dryer 6 and the air storage tank 7 are used for supplying air to a pneumatic valve in the denitrification deep bed filter 12; the output end of the blower 8 is connected with one end of an exhaust pipeline through an exhaust pipe;
in the embodiment, the air compressor 5, the air cooling and drying machine 6 and the air storage tank 7 are used for supplying air to the pneumatic valve in the denitrification deep bed filter 12, the output end of the air blower 8 is connected with one end of an exhaust pipeline through an exhaust pipe, and the cleaned denitrification deep bed filter 12 is dried through the air blower 8.
The seventh embodiment: the embodiment is described with reference to fig. 1, and the embodiment is a further limitation of the denitrification deep-bed filter according to the first embodiment, and the integrated denitrification deep-bed filter according to the embodiment has n of 6 ≤ n ≤ 10.
The specific implementation mode is eight: the embodiment is described with reference to fig. 1, and the embodiment further defines the denitrification deep bed filter according to the first embodiment, and the integrated denitrification deep bed filter according to the embodiment has an inner diameter of 20cm to 40 cm;
according to the specific embodiment, the inner diameter of the discharge pipeline is 20-40 cm, so that the discharge speed of the denitrification deep bed filter 12 is increased.
The specific implementation method nine: the present embodiment will be described with reference to fig. 1, and the present embodiment is a further limitation of the deep bed denitrification filter according to the eighth embodiment, and the integrated deep bed denitrification filter according to the present embodiment has an inner diameter of 30cm in the discharge duct.
The detailed implementation mode is ten: the present embodiment will be described with reference to fig. 1, and the present embodiment is a further limitation of the deep bed denitrification filter according to the fourth embodiment, and in the integrated deep bed denitrification filter according to the present embodiment, the volume of the sodium hypochlorite storage tank 4 is 50L to 150L.
Principle of operation
When in use, sewage flows into the denitrification deep-bed filter tanks 12 through the water inlet mixing tank 11, and sodium hypochlorite stored in the sodium hypochlorite storage tank 4 is conveyed into the denitrification deep-bed filter tanks 12 through the dosing pump 13 in the dosing room 1; air is supplied to all pneumatic valves in the integral denitrification deep bed filter tank through an air compressor 5, a cold dryer 6 and an air storage tank 7 in the blower room 2; air is supplied to the denitrification deep bed filter 12 through an air blower 8 in the air blower room 2, so that the filter backwashing is completed; the power distribution cabinet 9 is used for supplying power to the dosing room 1, the blower room 2, the carbon source dosing room 3 and the ultrasonic generator; a carbon source is conveyed to a denitrification deep bed filter 12 through a sodium acetate storage tank 10 in the carbon source adding room 3, so that the carbon concentration in the sewage is increased, and a better denitrification and dephosphorization effect is achieved;
after long-term use of the denitrification deep bed filter 12, clean water flows into a plurality of denitrification deep bed filters 12 through a water inlet mixing tank 11, a carbon source is added into a sodium acetate storage tank 10 in a room 3, the carbon source is conveyed into the denitrification deep bed filters 12 to be mixed with the water, an ultrasonic generator at the bottom end of each denitrification deep bed filter 12 is started, impurities remained in the denitrification deep bed filters 12 are removed by ultrasonic waves, the ultrasonic generator is started for 30-60 minutes, a driving motor 12-1 is started, the driving motor 12-1 drives a transmission shaft 12-4 to rotate, the transmission shaft 12-4 drives a roller 12-2 and a brush 12-6 to rotate, a sliding block 12-3 moves on a rectangular sliding rail 12-5, and therefore the edge of the brush 12-6 is in contact with the inner wall of the denitrification deep bed filter 12, when the slide block 12-3 moves for five to ten times on the rectangular slide rail 12-5, the cleaning of the denitrification deep bed filter 12 can be completed, and the liquid in the denitrification deep bed filter 12 is discharged through a discharge pipeline after the cleaning is completed; after the cleaning unit is used for a long time, the brush can be replaced;
when the brush 12-6 is replaced, the pin at the contact part of the transmission shaft 12-4 and the top of the brush 12-6 is taken out, the boss at the top of the brush 12-6 is pulled out of the counter bore at the bottom end of the transmission shaft 12-4, the boss at the top of the new brush 12-6 is inserted into the counter bore at the bottom end of one of the transmission shafts 12-4, and the pin is inserted, so that the replacement is completed at the moment.
Claims (10)
1. An integrated form denitrification deep bed filtering pond which characterized in that: the device comprises n denitrification deep bed filters (12), a water inlet mixing tank (11), a dosing room (1), a blower room (2) and a carbon source dosing room (3), wherein n is a positive integer;
the n denitrification deep-bed filters (12) are arranged in parallel, a discharge pipeline is arranged at the bottom of each denitrification deep-bed filter (12), n discharge branch pipes are arranged on the discharge pipeline along the outer circumferential surface, each discharge branch pipe is connected with a discharge port at the bottom of each denitrification deep-bed filter (12), a dosing room (1), an air blower room (2) and a carbon source adding room (3) are sequentially arranged near one row of denitrification deep-bed filters (12) from left to right, the output end of each dosing room (1) is connected with one end of each dosing pipeline, the other end of each dosing pipeline is communicated with one end of each discharge pipeline, the output end of each air blower room (2) is connected with one end of each exhaust pipeline, the other end of each exhaust pipeline is closed, n ventilation branch pipes are arranged on the outer circumferential surface of each exhaust pipeline and connected with a ventilation opening of each denitrification deep-bed filter (12), the output end of each carbon source adding room (3) is connected with, the other end of the conveying pipeline is closed, n conveying branch pipes are arranged on the outer surface of the circumference of the conveying pipeline, each conveying branch pipe is connected with a throwing port of the denitrification deep bed filter (12), a water inlet mixing tank (11) is arranged on one side of the row of denitrification deep bed filters (12), and the water inlet mixing tank (11) is communicated with the denitrification deep bed filters (12).
2. The integrated denitrification deep bed filter according to claim 1, wherein: each denitrification deep bed filter (12) is provided with a cleaning unit;
the cleaning unit comprises a driving motor (12-1), a roller (12-2), a sliding block (12-3), a transmission shaft (12-4), a rectangular sliding rail (12-5), a brush (12-6), a fixed support (12-7) and an ultrasonic generator (12-8);
the top end of the denitrification deep bed filter (12) is provided with a rectangular sliding rail (12-5), each arc corner of the rectangular sliding rail (12-5) is fixedly connected with the top corner of the denitrification deep bed filter (12) through a fixing bracket (12-7), two sides inside the sliding block (12-3) are respectively provided with a transmission shaft (12-4), each transmission shaft (12-4) is provided with a roller (12-2), the roller (12-2) is fixedly connected with the transmission shaft (12-4) through a key slot, the rectangular sliding rail (12-5) is arranged between the two rollers (12-2), the top of the sliding block (12-3) is provided with a driving motor (12-1), the top end of one transmission shaft (12-4) is fixedly connected with an output shaft of the driving motor (12-1), the bottom end face of one of the transmission shafts (12-4) is provided with a counter bore, the top end face of the brush (12-6) is provided with a boss, the boss at the top of the brush (12-6) is inserted into the counter bore at the bottom end of one of the transmission shafts (12-4) and is fixedly connected with the counter bore through a pin, and the center of the bottom end in the denitrification deep bed filter (12) is provided with an ultrasonic generator (12-8).
3. The integrated denitrification deep bed filter according to claim 1, wherein: the carbon source feeding room is characterized in that a power distribution cabinet (9) is arranged between the air blower room (2) and the carbon source feeding room (3), and the power distribution cabinet (9) is used for supplying power to the feeding room (1), the air blower room (2), the carbon source feeding room (3) and the ultrasonic generator.
4. An integrated denitrification deep bed filter according to claim 3, wherein: add medicine room (1) include sodium hypochlorite storage tank (4) and add medicine pump (13), the edge on the top of sodium hypochlorite storage tank (4) is articulated with the one end of lid, the side bottom of sodium hypochlorite storage tank (4) is equipped with the discharge port, and the discharge port passes through the pipeline and is connected with medicine pump (13), the output that adds medicine pump (13) is connected with the one end that adds the medicine pipeline.
5. An integrated denitrification deep bed filter according to claim 3, wherein: a sodium acetate storage tank (10) is arranged in the carbon source adding room (3), a discharge port at the bottom of the sodium acetate storage tank (10) is connected with one end of a conveying pipeline through a pipeline, and a control valve is arranged at the discharge port at the bottom of the sodium acetate storage tank (10).
6. An integrated denitrification deep bed filter according to claim 3, wherein: the air blower room (2) comprises an air blower (8), an air compressor (5), a cold dryer (6) and an air storage tank (7); the output end of the air compressor (5) is connected with the input end of the cold dryer (6) through an exhaust pipe, the output end of the cold dryer (6) is connected with the input end of the air storage tank (7) through an exhaust pipe, and the air compressor (5), the cold dryer (6) and the air storage tank (7) are used for supplying air to a pneumatic valve in the denitrification deep bed filter (12); the output end of the air blower (8) is connected with one end of the exhaust pipeline through an exhaust pipe.
7. The integrated denitrification deep bed filter according to claim 1, wherein: n is more than or equal to 6 and less than or equal to 10.
8. The integrated denitrification deep bed filter according to claim 1, wherein: the inner diameter of the discharge pipeline is 20 cm-40 cm.
9. The integrated denitrification deep bed filter according to claim 8, wherein: the inner diameter of the discharge pipeline is 30 cm.
10. The integrated denitrification deep bed filter according to claim 4, wherein: the volume of the sodium hypochlorite storage tank (4) is 50L-150L.
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