CN209522745U - A kind of fermentor preparing organic carbon source using primary sludge - Google Patents

Abstract

A kind of fermentor preparing organic carbon source using primary sludge, including tank body, top is equipped with mud inlet and heating rod installs preformed hole, and heating rod, which is installed, is inserted into heating rod in preformed hole；Inside is divided by partition is located in the middle Hydraulic Circulation area and the mud-water separating area positioned at surrounding, Hydraulic Circulation, which is divided into, is located in the middle waterpower rising area and the waterpower descending area positioned at surrounding, waterpower rising area, waterpower descending area are connected with mud-water separating area, are equipped with high fermentation product outlet at corresponding mud-water separating area；Bottom is equipped with into mud bell-mouth structure of air and multiple reflux bell-mouth structure of air.The land occupation of this fermentor is smaller, and operation is more convenient, can have automatic temperature-controlled and flow control regulatory function option, and be equipped with safeguard protection alarm monitoring, it is ensured that optimal operating condition by the sludge disintegration of inflow at useless mud and high-quality organic carbon source tunning.It can be applicable in sewage disposal system.

Description

A kind of fermentor preparing organic carbon source using primary sludge

Technical field

The utility model relates to sludge treatment equipment, in particular to a kind of fermentation that organic carbon source is prepared using primary sludge Tank.

Background technique

In recent years, water environment situation in China's is increasingly serious, in all parts of the country to propose more sternly to the effluent quality of sewage plant It is arduous to mention mark transformation task for the requirement of lattice.However, the main problem occurred in sewage plant upgrading at present be into water component not Equilibrium, carbon-nitrogen ratio (C/N) is low in sewage, can be by effective carbon source that denitrifying bacterium and polyP bacteria directly utilize more in raw water carbon source It is few, cause water outlet nitrogen and phosphorus content unstable, water outlet mentions the level-one A or surface water quality standard four of mark to national GB18918-2002 Class water body is difficult.And another problem is that a large amount of specific resistance to filtration that sewage treatment generates are difficult, the especially resource of sludge Change and utilizes an always problem.

The way that tradition solves municipal sewage plant's carbon source demand is to provide outer carbon source to biological treatment system, such as: first Alcohol, ethyl alcohol, sodium acetate or cerelose etc., certainly will lead to once to invest big, operating cost height, and sludge quantity is big.Primary sludge In a large amount of carbohydrate (~ 50%), protein (~ 27%), fatty (~ 20%) that contain belong to organic carbon source at a slow speed.If It is translated into quick organic carbon source (first kind matrix), is used for denitrification dephosphorization system, then the biology that can greatly speed up sewage is de- Nitrogen dephosphorization efficiency, while additional carbon is avoided, save operating cost.By taking 100,000 m3/d scale sewage plants as an example, primary sludge Yield about 13000kg/d generates carbon source amount about 7500kg/d, is equivalent to the methanol for saving 3200kg/d.

It in the prior art, is mainly both at home and abroad the item studied different sludge fermentations and produce acid for the research emphasis of sludge fermentation Part, small, weight theory analysis and mechanism study.For Practical Project expansion industrial experimentation research seldom have been reported that, The design and operating parameter of carbon source preparation facilities also do not retrieve, and it is also several applied to the field of Practical Project that sludge fermentation produces acid It is blank out.

Utility model content

The utility model is in view of the above-mentioned problems, provide a kind of fermentor for preparing organic carbon source using primary sludge.

The purpose of this utility model can be realized by following technical proposals: a kind of to prepare organic carbon using primary sludge The fermentor in source, including tank body, the top of the tank body is equipped with mud inlet and heating rod installs preformed hole, the heating rod installation Insertion is equipped with more heating rods in preformed hole；The inside of the tank body be divided by partition be located in the middle Hydraulic Circulation area and Positioned at the mud-water separating area of surrounding, the Hydraulic Circulation, which is divided into, is located in the middle waterpower rising area and under the waterpower of surrounding Area drops, and the waterpower rising area, waterpower descending area are connected with mud-water separating area；The correspondence mud-water separating area of the tank body it is upper High fermentation product outlet is equipped at portion；The bottom of the tank body is equipped with into mud bell-mouth structure of air and reflux bell-mouth structure of air, The inside of the bottom centre for being connected to tank body in big top and small bottomly into mud bell-mouth structure of air, the reflux bell-mouth structure of air Quantity be that multiple and multiple reflux bell-mouth structure of air are evenly distributed in the side into mud bell-mouth structure of air, reflux horn mouth knot Structure is connected to the outside of the bottom of tank body in big top and small bottomly.

Further, the partition includes annular inner baffle and annular outer baffle, the annular inner baffle and annular it is outer every Plate is coaxial and is arranged inside and outside, and annular inner baffle and annular outer baffle pass through fixation steel plate and the inner wall of tank body connects, in annular Tank interior space is divided into waterpower rising area, waterpower descending area and mud-water separation by partition and annular outer baffle from inside to outside Area.

Further, the entirety on the top and top of the tank body is in the high shape in the low centre of surrounding, the annular outer baffle Upper surface be higher than the upper surface of annular inner baffle, the top of annular outer baffle is in up-small and down-big gathering shape, the tank body The entirety of lower part and bottom is in low shape between surrounding senior middle school, and the lower end surface of the annular inner baffle is lower than the lower end of annular outer baffle Face.

Still further, the partition further includes annular mud-water separation partition, the annular mud-water separation partition is set to The top of mud-water separating area, annular mud-water separation partition is coaxial with annular outer baffle and is set to the week on the top of annular outer baffle Side, annular mud-water separation partition connect in the inner wall of the up-small and down-big lower end for collapsing shape and annular mud-water separation partition and tank body It connects, the annular mud-water separation partition makes the top side of mud-water separating area be divided into high fermentation product discharge area, the tank High fermentation product outlet is set at the correspondence high fermentation product discharge area of body.

Further, automatic exhaust steam valve and pressure gauge are circumscribed at the top of the tank body, the lower part of tank body is circumscribed with temperature Meter and pH meter.

Further, the side of the tank body is additionally provided with multiple sample taps.

It further, further include temperature monitoring system, the temperature monitoring system is connect with heating rod.

Compared with prior art, the utility model has the beneficial effects that the land occupation of (1) fermentor is smaller, sewage plant liter is solved The problem of land used deficiency in grade transformation；(2) operation is more convenient, without the civil engineering facility other than basis, as long as connecting enters mud pipe, row Mud pipe, carbon source pipe, can be by the sludge disintegration of inflow at useless mud and high-quality organic carbon source tunning；(3) have automatic temperature-controlled With flow control regulatory function option, and be equipped with safeguard protection alarm monitoring, it is ensured that optimal operating condition.The fermentor is applied In sewage disposal system, can on-line continuous prepare organic carbon source without being influenced by sewage or sludge treatment technique, generation has Machine carbon source reduces water outlet total nitrogen, improves discharge standard, keeps the outlet effect for giving birth to anti-pond more preferable, and alleviates carbon source deficiency Problem.

Detailed description of the invention

Fig. 1 is the floor map of the utility model.

Fig. 2 is the cross-sectional view of A-A in Fig. 1.

Fig. 3 is the structural schematic diagram at the top of the utility model.

Fig. 4 is the arrangement schematic diagram of the sample tap of the utility model.

Fig. 5 is the integral planar schematic diagram of the external circulation line of the utility model.

Fig. 6 is the cross-sectional view of B-B in Fig. 5.

Fig. 7 is the schematic diagram of the external probe tube of the utility model.

Fig. 8 is the schematic diagram of the circulation line in Fig. 5.

Fig. 9 is that the utility model applies the schematic diagram in sewage disposal system.

Component mark is as follows in figure:

1 tank body

2 mud inlets

3 heating rods install preformed hole

4 heating rods

5 annular inner baffles

6 annular outer baffles

7 annular mud-water separation partitions

8 fixation steel plates

9 waterpower rising areas

10 waterpower descending areas

11 mud-water separating areas

12 high fermentation product discharge areas

13 high fermentation product outlets

14 UPVC pipe

15 automatic exhaust steam valves

16 pressure gauges

17 thermometers

18 pH meters

19 into mud bell-mouth structure of air

20 reflux bell-mouth structure of air

21 support ribs

22 circulation enters mud pipes

23 circulating reflux branch pipes

24 circulating reflux general pipeline

25 circulating pumps

26 sludge pipes

27 blow-down pipes

28 sample taps

29 probe tubes

30 electromagnetic flowmeters.

Specific embodiment

Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing, becomes apparent from those skilled in the art How ground understanding practices the utility model.Although describing the utility model in conjunction with its preferred embodiment, these Embodiment only illustrates, rather than limits the scope of the utility model.

Referring to Fig. 1 to Fig. 4, a kind of fermentor preparing organic carbon source using primary sludge, including tank body 1, the tank body 1 Top be equipped with mud inlet 2 and heating rod preformed hole 3 be installed, the heating rod installation preformed hole 3 is set in the top of tank body 1 The heart is inserted into tank body 1 by heating rod installation preformed hole 3 and is equipped with more heating rods 4, and the heating rod 4 realizes team's tank body 1 The heating of internal sludge further includes temperature monitoring system, and the temperature monitoring system is connect with heating rod 4, is realized to heating rod 4 The real-time monitoring and control of temperature.

The inside of the tank body 1 is equipped with annular inner baffle 5 and annular outer baffle 6, the annular inner baffle 5 and annular it is outer every Plate 6 is coaxial and is arranged inside and outside, and annular inner baffle 5 and annular outer baffle 6 are respectively connected with the multi-disc fixation steel plate 8 being evenly distributed, Fixation steel plate 8 shown in FIG. 1 is four, and the fixation steel plate 8 connect with the inner wall of tank body 1, annular inner baffle 5 and it is annular outside every 1 inner space of tank body is divided into waterpower rising area 9, waterpower descending area 10 and mud-water separating area 11 by plate 6 from inside to outside, described Waterpower rising area 9, waterpower descending area 10 are connected with mud-water separating area 11, and waterpower rising area 9 and waterpower descending area 10 constitute water Power race way is equipped with high fermentation product outlet 13 at the top of the correspondence mud-water separating area 11 of the tank body 1.Wherein, institute The top of tank body 1 and the entirety at top are stated in the high shape in the low centre of surrounding, the upper surface of the annular outer baffle 6 be higher than in annular every The upper surface of plate 5, the top of annular outer baffle 6 are in up-small and down-big gathering shape；The lower part of the tank body 1 and the entirety of bottom are in Low shape between surrounding senior middle school, the lower end surface of the annular inner baffle 5 are lower than the lower end surface of annular outer baffle 6.The mud-water separating area 11 top is additionally provided with annular mud-water separation partition 7, and the annular mud-water separation partition 7 is coaxial with annular outer baffle 6 and is arranged In the side on the top of annular outer baffle 6, annular mud-water separation partition 7 is equally in up-small and down-big gathering shape and annular muddy water point Lower end from partition 7 is connect with the inner wall of tank body 1, and the annular mud-water separation partition 7 makes the top week of mud-water separating area 11 Side is divided into high fermentation product discharge area 12, and high fermentation is arranged at the correspondence high fermentation product discharge area 12 of the tank body 1 Product outlet 13.

The top of the tank body 1 is circumscribed with automatic exhaust steam valve 15 and pressure gauge 16, and the lower part of tank body 1 is circumscribed with thermometer 17 With pH meter 18, the gas that the automatic exhaust steam valve 15 generates fermentation process in tank body 1 is discharged, the pressure gauge 16, thermometer 17 and pH meter 18 to pressure, temperature and the pH real-time detection in tank body 1.

The bottom of the tank body 1 is equipped with into mud bell-mouth structure of air 19 and reflux bell-mouth structure of air 20, described into mud horn mouth Structure 19 is connected to the inside of the bottom centre of tank body 1 in big top and small bottomly, more by being evenly distributed into mud horn mouth A support rib 21 is connect with the inner wall of tank body 1, and the quantity of the reflux bell-mouth structure of air 20 is multiple and multiple reflux loudspeaker Mouth structure 20 is evenly distributed in the side into mud bell-mouth structure of air 19, and the quantity of reflux bell-mouth structure of air 20 shown in Fig. 2 is Four, reflux bell-mouth structure of air 20 is connected to the outside of the bottom of tank body 1 in big top and small bottomly.

The side of the tank body 1 is additionally provided with multiple sample taps 28, multiple sample taps 28 from the side high position of tank body 1 to Other side low level is uniformly distributed.The quantity of sample tap 28 shown in Fig. 4 is five.

When practical application, referring to Fig. 6 to Fig. 9, the external enters mud pipe road of the mud inlet 2, tap into outside enters mud pipe road dredge pump and Electromagnetic flowmeter is used to squeeze into the primary sludge in primary sedimentation tank blowoff chamber tank body 1 into dredge pump, and is carried out by electromagnetic flowmeter Metering；The external UPVC pipe 14 moved towards downward of the high fermentation product outlet 13, the UPVC pipe 14 connects ball valve, described Ball valve is connect by hose with holding vessel, and the junction of ball valve and hose is equipped with anchor ear to clamp, and the tunning in tank body 1 is logical 14 overflow of UPVC pipe is crossed to holding vessel, then pump and carbon source pipe are added by carbon source and throw the tunning in holding vessel to nearby The anti-pond of life in, the process pipeline is shorter, improves and adds efficiency；It is described into the external circulation enters mud pipe of mud bell-mouth structure of air 19 22, the external circulating reflux branch pipe 23 of each reflux bell-mouth structure of air 20, multiple circulating reflux branch pipes 23 collect connection and follow Ring return header 24, the circulation enters mud pipe 22 and circulating reflux general pipeline 24 are connected to the two sides of a circulating pump 25, circulation Enters mud pipe 22, circulating reflux general pipeline 24 and multiple circulating reflux branch pipes 23 constitute circulation line；The sample tap 28, which is circumscribed with, to be taken Sample pipe 29 is again provided with shut-off valve on the probe tube 29.Wherein, sludge pipe 26 and emptying are also connected on the circulation line Pipe 27, specifically, circulation enters mud pipe 22 connect sludge pipe 26 into 19 connecting pin of mud bell-mouth structure of air, and circulation enters mud pipe 22 is followed Ring pumps 25 connecting pins and connects blow-down pipe 27, and sludge pipe 26 can connect primary sedimentation tank, by circulating pump 25 by the useless mud after sludge disintegration It is driven into primary sedimentation tank, realizes recycling treatment, recycles and also is provided with electromagnetic flowmeter 30 in enters mud pipe 22, facilitate and measured, put All Media in tank body 1 is vented by blank pipe 27 by circulating pump 25, and easy to repair, the circulation enters mud pipe 22, circulating reflux are total Shut-off valve is respectively equipped on pipe 24, sludge pipe 26 and blow-down pipe 27.

Without the civil engineering facility other than basis, as long as connecting, sludge pipe, carbon source pipe and power supply, the present apparatus will will flow into Sludge disintegration at useless mud and tunning, specific work process is as follows: into dredge pump work, primary sedimentation tank is arranged by enters mud pipe road Primary sludge in mud well is squeezed into inside tank body 1 from the top of tank body 1 to ferment, and heating rod 4 heats assisted fermentation；Circulating pump 25 work form Hydraulic Circulation by the Hydraulic Circulation area inside the circulation line and tank body 1 of 1 bottom of tank body, realize that stirring is dirty Mud, agitated sludge and water are mainly separated in mud-water separating area 11, and the tunning on upper layer is on 11 top of mud-water separating area High fermentation product discharge area 12 is discharged by way of overflow, is flow in holding vessel by UPVC pipe 14, is then passed through carbon source It adds pump and carbon source pipe is thrown into the anti-pond of life nearby, high-quality carbon source can be provided for biological denitrificaion, reduce water outlet total nitrogen, mention Maximum discharge standard；Useless mud after sludge disintegration still enters original Treatment of Sludge process, is driven into primary sedimentation tank again, realizes sludge Resource utilization.

Single set present apparatus is applicable in 1000 ~ 10000m of sewage treatment plant's scale³/ d, into mud moisture content 98 ~ 97%.

Under optimum condition: 0.3 ~ 0.5mgSCOD/mgVSS of tunning SCOD yield；Volatile fatty acid VFA yield 0.2 ~0.3mgVFA/mgVSS；Maximum 20 ~ 25mgN/gVSS of denitrification rate h；TN and TP removal rate improves about 50 ~ 70%.

It should be pointed out that can also have a variety of transformation and the implementation of remodeling for the utility model through absolutely proving Scheme, it is not limited to the specific embodiment of above embodiment.Above-described embodiment as just the utility model explanation, and It is not limitations of the present invention.In short, the protection scope of the utility model should include those for ordinary skill It obviously converts or substitutes and retrofit for personnel.

Claims (7)

1. a kind of fermentor for preparing organic carbon source using primary sludge, including tank body, which is characterized in that the top of the tank body Preformed hole is installed equipped with mud inlet and heating rod, insertion is equipped with more heating rods in the heating rod installation preformed hole；It is described The inside of tank body is divided by partition is located in the middle Hydraulic Circulation area and the mud-water separating area positioned at surrounding, the Hydraulic Circulation Divide into and be located in the middle waterpower rising area and the waterpower descending area positioned at surrounding, the waterpower rising area, waterpower descending area and Mud-water separating area is connected；High fermentation product outlet is equipped at the top of the correspondence mud-water separating area of the tank body；It is described The bottom of tank body be equipped with into mud bell-mouth structure of air and reflux bell-mouth structure of air, it is described into mud bell-mouth structure of air in big top and small bottomly It is connected to the inside of the bottom centre of tank body, the quantity of the reflux bell-mouth structure of air is multiple and multiple reflux bell-mouth structure of air It is evenly distributed the bottom that the bell-mouth structure of air that flows back in the side into mud bell-mouth structure of air is connected to tank body in big top and small bottomly Outside.

2. the fermentor according to claim 1 for preparing organic carbon source using primary sludge, which is characterized in that the partition Including annular inner baffle and annular outer baffle, the annular inner baffle and annular outer baffle are coaxial and be arranged inside and outside, in annular every Plate and annular outer baffle pass through the inner wall connection of fixation steel plate and tank body, annular inner baffle and annular outer baffle for tank interior Space is divided into waterpower rising area, waterpower descending area and mud-water separating area from inside to outside.

3. the fermentor according to claim 2 for preparing organic carbon source using primary sludge, which is characterized in that the tank body Top and the entirety at top be in the high shape in the low centre of surrounding, the upper surface of the annular outer baffle is higher than the upper end of annular inner baffle Face, the top of annular outer baffle are in up-small and down-big gathering shape, and the lower part of the tank body and the entirety of bottom are between surrounding senior middle school Low shape, the lower end surface of the annular inner baffle are lower than the lower end surface of annular outer baffle.

4. the fermentor according to claim 2 or 3 for preparing organic carbon source using primary sludge, which is characterized in that described Partition further includes annular mud-water separation partition, and the annular mud-water separation partition is set to the top of mud-water separating area, annular mud Water separation partition is coaxial with annular outer baffle and is set to the side on the top of annular outer baffle, and annular mud-water separation partition is presented The inner wall of the small lower big lower end for collapsing shape and annular mud-water separation partition and tank body connects, and the annular mud-water separation partition makes The top side for obtaining mud-water separating area is divided into high fermentation product discharge area, the correspondence high fermentation product discharge area of the tank body Place's setting high fermentation product outlet.

5. the fermentor according to claim 1 for preparing organic carbon source using primary sludge, which is characterized in that the tank body Top be circumscribed with automatic exhaust steam valve and pressure gauge, the lower part of tank body is circumscribed with thermometer and pH meter.

6. the fermentor according to claim 1 for preparing organic carbon source using primary sludge, which is characterized in that the tank body Side be additionally provided with multiple sample taps.

7. the fermentor according to claim 1 for preparing organic carbon source using primary sludge, which is characterized in that further include temperature Monitoring system is spent, the temperature monitoring system is connect with heating rod.