CN207775038U - A kind of biological treatment system of municipal sludge - Google Patents

Abstract

The utility model discloses a kind of biological treatment systems of municipal sludge, including sludge crusher, leaf pulverizer, blender, loading machine, container-type heat aerobic organisms fermentation device, wind turbine, biofilter, water tank, diafiltration liquid processing device, PLC control centres, oxygen sensor, temperature sensor, signal cable；The container-type heat aerobic organisms fermentation device includes shell and its inside cabin；The shell is sandwich；The inside cabin is equipped with Isolation bed and material column；The material column lays the first aerating pipelines, the second aerating pipelines, third aerating pipelines, oxygen sensor, temperature sensor.The system discards leaf as auxiliary material using dewatered domestic sludge as major ingredient, to afforest, fully meet aerobic fermentation condition by the scientific design of the reasonably combined and key link of mechanical equipment, reach complete decomposed standard, fermented product is enable to be applied successfully to afforestation.

Description

A kind of biological treatment system of municipal sludge

Technical field

The utility model is related to the field of environment protection equipment of Solid Waste Treatment, and in particular to a kind of life of municipal sludge Object processing system.

Background technology

Municipal sludge refers to that sewage treatment plant generates during carrying out purified treatment to city domestic sewage Deposit, it is a kind of solidliquid mixture.Municipal sludge is higher containing organic matter, nitrogen, phosphorus, and feeder capability is relatively strong, Therefore it is a good organic fertilizer resource.

Current specific resistance to filtration technology both domestic and external is with traditional sanitary landfills, burning, building materials utilization and farmland utilization Based on.Sludge sanitary landfills has been a kind of Sludge Disposal Techniques of comparative maturity.The advantages of this technology is small investment, capacity Greatly, quick.But Sludge landfill technology does not avoid environmental pollution finally, and only delays the time that pollution generates, and does not have Have from source, fundamentally solve the problems, such as sludge treatment, this just determines that Sludge landfill technology can not possibly be as a kind of cleaning, money Source disposal technology and be developed in future.The advantage of sludge incineration technology is the completeness of its processing, can it is rapid, have Effect ground makes sludge achieve the purpose that sterilization and minimizing.But the major defect burned is that the heavy metal in sludge can be with flue dust Diffusion and pollute air again, in addition its equipment investment, operation and maintenance are costly, increase the difficulty of popularization.Sludge Construction material comprehensive utilization technique once becomes hot spot.But the experiment proved that sludge directly uses the actual motion of construction material Situation greatly differs from each other with desired value, and the comprehensive utilization of sludge construction material should meet the relevant criterion of country and place and specification is wanted It asks, and strictly takes precautions against and producing and caused in secondary pollution.The advantages of agricultural sludge, is one kind can be used as naturally to have Machine fertilizer is utilized by farmland, the growth for improving edaphic condition, promoting crops.But the application of this technology has to carry out strictly Standard, no it will cause even more serious environmental pollutions, even result in the lesion of plant, animal or even the mankind.

By analyze above it is found that sludge landfill, burn and as construction material can all cause secondary pollution；Sludge Agricultural use due to the life directly with the mankind it is associated, if safeguard procedures are not handled properly with relevant criterion, also hold very much Easily cause secondary environmental pollution or even crisis people and animals and plant Jiankang.

With the quickening of urbanization progress, the improvement of life of urban resident condition, requirement of the people to ambient enviroment also with It is surging, urban landscaping is also more and more paid attention to.Therefore, sludge gradually gos deep into for the research and application of urban landscaping The popular feeling.Application of the sludge on urban landscaping refers to that treated sludge is for sidewalk tree, shrub, flowers, lawn etc. Fertilizer, matrix and Nutrition Soil are used as in cultivation.Sludge is used for urban afforestation and ornamental plant, has both broken away from food chain, Will not crisis people and animals, reduce the expense of transport.If scientifically and rationally applied, chemical fertilizer is not only saved, soil texture is improved, The flowers amount of blooming for improving soil fertility, and cultivating increases, longer blooming period；Turf color is more bright-coloured, the retention time It also can be longer.When sludge is used for afforestation, shale should meet《Urban sewage treatment plant sludge disposes afforestation shale》 Regulation and related standard requirement.For this purpose, the premise that sludge is used for urban afforestation is exactly to have to pass through harmless treatment, and high temperature Composting treatment is just at one of optimal selection.Sludge can remove stink and the fragrance with soil after compost treatment Smell；Brown or brownish black is similar to fertile soil；Moisture content is greatly reduced（Generally below 40%）, loose, dispersion, little particle Shape, convenient for storage, transport and application；Composting treatment heap temperature can reach 55 DEG C or more, can effectively kill pathogen With the harmful microorganisms such as parasite, reach innoxious purpose, while heavy metal and organic pollution are passivated to a certain extent Or degradation, it can effectively be attenuated or detoxification.

Sludge high temperature Composting Process has two kinds of aerobic compost and anaerobic composting.Anaerobic composting is compared due to the cycle of operation Long, process is difficult to control, and is not widely used to promote temporarily.Sludge Composting is substantially using aerobic compost at present. Sludge aerobic compostization is substantially that the process of aerobic fermentation is carried out using the aerobic microbiological in sludge.Sludge aerobic compost Method and apparatus is varied, but at present relatively lack using domestic sludge as major ingredient, using afforest waste as auxiliary material carry out it is aerobic Ferment and supplied with quality really up to the mark the application technology of urban landscaping.

Utility model content

To overcome defect of the existing technology, the utility model to provide a kind of biological treatment system of municipal sludge System, the system discard leaf as auxiliary material using dewatered domestic sludge as major ingredient, to afforest, pass through the reasonably combined of mechanical equipment Fully meet aerobic fermentation condition with the scientific design of key link, reaches complete decomposed standard, fermented product is enable to succeed Ground is applied to afforestation.

The technical solution of the utility model is：Including sludge crusher, leaf pulverizer, blender, loading machine, container Formula heat aerobic organisms fermentation device, wind turbine, biofilter, water tank, diafiltration liquid processing device, PLC control centres, oxygen sensor, Temperature sensor, signal cable；After the blender is used to crush in the broken sludge of sludge crusher and leaf pulverizer Leaf be sufficiently mixed；The loading machine is used to the mixture of sludge and leaf being transported to container-type aerobe hair Ferment device；The container-type heat aerobic organisms fermentation device includes shell and its inside cabin；The shell is sandwich, outer layer and internal layer It is metallic plate, intermediate interlayer is thermal insulation board；The shell surrounds the babinet in six faces, and the shape of babinet is cuboid Deformable body, head cover are inclined-plane, and the height of left side is made to be more than the height of right side, left side, right side length and bottom Exhaust pipe is arranged in the equal length in face, the eminence on inclined-plane, and exhaust pipe is connect by gas pipeline with biofilter inlet end, oblique Drip pan is arranged in the lower in face, and the corresponding right side in drip pan tail portion is equipped with drainpipe, and drainpipe passes through water pipeline and water tank Connection；The bottom of the inside cabin is equipped with Isolation bed, and the bed surface of Isolation bed is net slice, and tile filter cloth on net slice surface, isolation The bed surface of bed is equipped with drain pipe using down space as leachate collection pool, in corresponding housing side, and drain pipe passes through liquid pipe line It is connect with diafiltration liquid processing device；The top of the inside cabin is equipped with the cushion chamber risen as exhaust gas, vapor；The inside cabin Cavity between cushion chamber and Isolation bed is as the material column for containing the mixture；Top, middle part, the lower part of the material column The first aerating pipelines, the second aerating pipelines, the third aerating pipelines being connected to the wind turbine outside case are laid respectively；The material column Top, middle part, lower part are all provided with oxygen sensor, the temperature sensor being connect with PLC control centres by signal cable.

Said program can advanced optimize for：

First aerating pipelines, the second aerating pipelines, third aerating pipelines respectively include the first supervisor and its vertically set Several branch pipes, the second supervisor and its vertically disposed several branch pipes, third supervisor and its vertically disposed several branch pipes set；Institute The trend for stating the first supervisor, the second supervisor and third supervisor is consistent with the length direction of tank floor；Each branch pipe is equal It is consistent with the width degree direction of tank floor；The wind turbine includes preceding transportation work style machine, way of escape wind turbine, and air outlet distinguishes mating preceding road Manifold, way of escape manifold；The both ends of first supervisor are stretched out outside case, and one end is total by the way that the preceding road of preceding the first valve of road connection is arranged Pipe, the other end connect way of escape manifold by the way that the first valve of the way of escape is arranged；The both ends of second supervisor are stretched out outside case, and one end is logical It crosses and is arranged that preceding road the second valve connects preceding road manifold, the other end passes through and the second valve of the way of escape is arranged connects way of escape manifold；Described The both ends of three supervisors are stretched out outside case, after one end is by being arranged the preceding road manifold of preceding road third valve connection, the other end by setting Road third valve connection way of escape manifold.

The endcapped of the branch pipe is uniformly arranged several round or ellipse ventholes on the tube wall of branch pipe.

First valve of preceding road, the first valve of the way of escape, the second valve of preceding road, the second valve of the way of escape, preceding road third valve, Way of escape third valve is the solenoid valve being connect with PLC control centres by signal cable.

The sludge crusher uses Double-shaft shearing crusher.

The leaf pulverizer uses beater disintegrating machine.

The blender uses concrete mixer.

The wind turbine uses centrifugal fan.

The metallic plate uses stainless steel plate.

The thermal insulation board uses polyurethane thermal insulation board.

The utility model has excellent technique effect, is mainly manifested in the following aspects：

1. discarded leaf is utilized effectively, turn waste into wealth.

2. by the pretreatment measure for taking sludge crushing, leaf to crush and be mutually mixed, for fully fermentation, uniformly hair Ferment creates good condition.

3. fermentor shell uses sandwich, it is equipped with insulating layer, is conducive to extend the guarantor of optimum temperature in fermentation process The time is held, it is of great advantage to thoroughly fermenting.

4. by the collection to fermentor upper water condensed steam water and lower part percolate, fermentation production can be efficiently reduced The moisture of product, convenience in transport and use.

5. by the processing to the percolate and exhaust gas that are generated in fermentation process, water, gas pollution caused by avoiding possibility, Be conducive to environmental protection.

6. by laying in length and breadth to aerating pipelines and commutation ventilation design, the uniformity of aeration and sufficient degree is made to reach most Good state is conducive to the advantage for farthest playing aerobic fermentation.

7. by the way that oxygen sensor, temperature sensor, solenoid valve is arranged and connects PLC control centres, oxygen, temperature are realized The automatic collection of parameter and automatically controlling for ventilation means are spent, keeps the control of fermentation process more precisely and timely, is conducive to most Realize to big degree the standardization of fermented quality.

Description of the drawings

Fig. 1 is the utility model container-type heat aerobic organisms fermentation device cross-sectional view；

Fig. 2 is aeration supervisor layout diagrammatic cross-section in Fig. 1；

Fig. 3 is that the first supervisor and branch pipe are laid out cross-sectional top enlarged diagram in Fig. 1；

Fig. 4 is Shell structure enlarged diagram in Fig. 1；

In figure：1- shells, 1.1- metallic plates, 1.2- thermal insulation boards, 2- inside cabins, the biofilters 3-, 4- gas pipelines, 5- exhausts Pipe, 6- drip pans, 7- drainpipes, 8- water pipelines, 9- water tanks, 10- first are responsible for, 11- branch pipes, 11.1- ventholes, 12- oxygen Gas sensor, 13- temperature sensors, 14- second are responsible for, 15- thirds supervisor, 16- drain pipes, 17- liquid pipe lines, 18- percolates Processing unit, 19- Isolation beds, 20- signal cables, 21-PLC control centres, transportation work style machine before 22-, the preceding road manifold of 23-, the preceding roads 24- Third valve, preceding the second valves of road of 25-, preceding the first valves of road of 26-, 27- material columns, the first valve of the 28- ways of escape, the 29- ways of escape Two valves, 30- way of escape third valves, 31- ways of escape manifold, 32- way of escape wind turbine.

Specific implementation mode

The utility model is described in detail below in conjunction with the accompanying drawings.

Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4.A kind of biological treatment system of municipal sludge, including sludge crusher, tree Leaf pulverizer, blender, loading machine, container-type heat aerobic organisms fermentation device, wind turbine, biofilter 3, water tank 9, at percolate Manage device 18, PLC control centres 21, oxygen sensor 12, temperature sensor 13, signal cable 20.Sludge crusher is using double Axis shear crusher.Leaf pulverizer uses beater disintegrating machine.Blender is used for the broken sludge of sludge crusher Leaf after being crushed with leaf pulverizer is sufficiently mixed.It facts have proved：The structure of concrete mixer is very suitable for broken mud With the mixing of broken leaf, should preferentially use.Loading machine is used to the mixture of sludge and leaf being transported to container-type aerobe Fermentor.Container-type heat aerobic organisms fermentation device includes shell 1 and its inside cabin 2.For enhancing heat-insulating property and prolong the service life, It is stainless steel plate 1.1 that shell 1, which uses sandwich, outer layer and internal layer, and intermediate interlayer is polyurethane thermal insulation board 1.2. Shell 1 surrounds the babinet in six faces, and the shape of babinet is the deformable body of cuboid, and head cover is inclined-plane, makes the height of left side Degree more than right side height, left side, right side length with the equal length of bottom surface；Exhaust is arranged in eminence on inclined-plane Pipe 5, exhaust pipe 5 are connect by gas pipeline 4 with 3 inlet end of biofilter；Drip pan 6,6 tail of drip pan is arranged in lower on inclined-plane The corresponding right side in portion is equipped with drainpipe 7, and drainpipe 7 is connect by water pipeline 8 with water tank 9.The bottom of inside cabin 2 is equipped with isolation The bed surface of bed 19, Isolation bed 19 is net slice, and tile filter cloth on net slice surface；The bed surface of Isolation bed 19 is using down space as oozing Filtrate collecting pit is equipped with drain pipe 16 in 1 side of corresponding shell, and drain pipe 16 passes through liquid pipe line 17 and diafiltration liquid processing device 18 connections.The top of inside cabin 2 is equipped with the cushion chamber risen as exhaust gas, vapor；Between the cushion chamber and Isolation bed 18 of inside cabin 2 Cavity as the material column 27 for containing the mixture.Top, middle part, the lower part of material column 27 are laid and the wind outside case respectively The first aerating pipelines, the second aerating pipelines, the third aerating pipelines of machine connection.First aerating pipelines, the second aerating pipelines, third If aerating pipelines respectively include the first supervisor 10 and its supervisor of vertically disposed several branch pipes 11, second 14 and its vertically disposed Heavenly Stems and Earthly Branches pipe 11, third supervisor 15 and its vertically disposed several branch pipes 11；First the 11, second supervisor 14 of supervisor and third supervisor 15 Trend it is consistent with the length direction of tank floor；Each branch pipe 11 is consistent with the width degree direction of tank floor.For side Just it uses and controls, wind turbine uses centrifugal fan, and includes preceding transportation work style machine 22, way of escape wind turbine 32, and air outlet difference is mating Preceding road manifold 23, way of escape manifold 31.The both ends of first supervisor 10 are stretched out outside case, and one end is connected by the way that preceding the first valve of road 26 is arranged The roads Jie Qian manifold 23, the other end connect way of escape manifold 31 by the way that the first valve of the way of escape 28 is arranged.The both ends of second supervisor 14 are stretched out Outside case, one end connects preceding road manifold 23, the other end by the way that the second valve of the way of escape 29 is arranged by the way that preceding the second valve of road 25 is arranged Connect way of escape manifold 31.The both ends of third supervisor 15 are stretched out outside case, and one end connects preceding road by the way that preceding road third valve 24 is arranged Manifold 23, the other end connect way of escape manifold 31 by the way that way of escape third valve 30 is arranged.To ensure the smooth implementation of aeration, branch pipe 11 Endcapped, be uniformly arranged several round or ellipse ventholes 11.1 on the tube wall of branch pipe 11.The first valve of preceding road 26, after The first valve of road 28, the second valve of preceding road 25, the second valve of the way of escape 29, preceding road third valve 24, way of escape third valve 30 are The solenoid valve being connect with PLC control centres 21 by signal cable 20.Top, middle part, the lower part of material column 27, which are all provided with, passes through letter Oxygen sensor 12, the temperature sensor 13 that number cable 20 is connect with PLC control centres 21.

The groundwork process and related principle of the utility model are as follows：

First, dewatered sludge is crushed with sludge crusher, discarded leaf is crushed with leaf pulverizer, is made Sludge, leaf particle controlled respectively in 2 ㎝ or less, 1 ㎝ or less；Then, with blender by broken mud with broken leaf according to suitable Ratio is uniformly mixed, in this, as the material of fermentation.By the material got ready according to the design of container-type heat aerobic organisms fermentation device Scheme is placed in inside cabin 2 with loading machine；Each aerating pipelines and sensor are installed in place simultaneously.After fermentation starts, can first it open The first valve of preceding road 26, the second valve of preceding road 25, preceding road third valve 24, aeration is aerated with preceding transportation work style machine 22；Every certain After time, turn off the first valve of preceding road 26, the second valve of preceding road 25, preceding road third valve 24, open the first valve of the way of escape 28, The second valve of the way of escape 29, way of escape third valve 30, aeration is aerated with way of escape wind turbine 32；Replace repeatedly, commutates Ventilation aeration.The advantage of doing so is that：Material is due to the distance difference apart from wind turbine when preventing from being only aerated from a direction ventilation Cause aeration intensity not of uniform size, in order to avoid influence the decomposed uniformity of material aerobic fermentation.During the fermentation, with temperature It is gradually increased, the partial moisture in material volatilizees to form vapor, is condensed to the cold when rising to case top and glides and fall along inclined-plane Water tank 9 is flowed into drip pan 6, then by drainpipe 7 and water pipeline 8；The exhaust gas of generation passes through exhaust pipe 5 and gas pipeline 4 It is handled into biofilter 3；Lower part percolate enters diafiltration liquid processing device 18 by drain pipe 16 and liquid pipe line 17.Automatic Change control aspect, be tie with PLC control centres 21, by upload data and the setting of oxygen sensor 12, temperature sensor 13 Data compare, and the opening and closing of solenoid valve is adjusted after comprehensive analysis；It should flexibly be grasped when practical execution, if for example, being only The material amount of oxygen of some level is insufficient, only opens the ventilation of some valve.In short, measures it is specific with Ensure standardizing, uniformly turning to principle for aerobic fermentation process.

Claims (10)

1. a kind of biological treatment system of municipal sludge, it is characterised in that：Including sludge crusher, leaf pulverizer, stir Mix machine, loading machine, container-type heat aerobic organisms fermentation device, wind turbine, biofilter, water tank, diafiltration liquid processing device, PLC controls Center processed, oxygen sensor, temperature sensor, signal cable；The blender is used for the broken sludge of sludge crusher Leaf after being crushed with leaf pulverizer is sufficiently mixed；The loading machine is for the mixture of sludge and leaf to be transported to Container-type heat aerobic organisms fermentation device；The container-type heat aerobic organisms fermentation device includes shell and its inside cabin；The shell is Sandwich, outer layer and internal layer are metallic plate, and intermediate interlayer is thermal insulation board；The shell surrounds the babinet in six faces, The shape of babinet is the deformable body of cuboid, and head cover is inclined-plane, and the height of left side is made to be more than the height of right side, left side Face, right side length with the equal length of bottom surface, exhaust pipe is arranged in the eminence on inclined-plane, and exhaust pipe passes through gas pipeline and life Drip pan is arranged in the inlet end connection of object filter tank, the lower on inclined-plane, and the corresponding right side in drip pan tail portion is equipped with drainpipe, draining Pipe is connect by water pipeline with water tank；The bottom of the inside cabin is equipped with Isolation bed, and the bed surface of Isolation bed is net slice, net slice Tile filter cloth on surface, and the bed surface of Isolation bed is equipped with drain using down space as leachate collection pool, in corresponding housing side Pipe, drain pipe are connect by liquid pipe line with diafiltration liquid processing device；The top of the inside cabin is equipped with to be risen as exhaust gas, vapor Cushion chamber；Cavity between the cushion chamber and Isolation bed of the inside cabin is as the material column for containing the mixture；The object The first aerating pipelines, the second aerating pipelines, third that are connected to the wind turbine outside case are laid in top, middle part, the lower part of stock column respectively Aerating pipelines；Top, middle part, the lower part of the material column are all provided with to be passed by the oxygen that signal cable is connect with PLC control centres Sensor, temperature sensor.

2. a kind of biological treatment system of municipal sludge according to claim 1, it is characterised in that：Described first exposes Air pipe, the second aerating pipelines, third aerating pipelines respectively include the first supervisor and its vertically disposed several branch pipes, the second master Pipe and its vertically disposed several branch pipes, third supervisor and its vertically disposed several branch pipes；First supervisor, the second supervisor And the trend of third supervisor is consistent with the length direction of tank floor；The branch pipe of first supervisor, the branch pipe of the second supervisor And the branch pipe of third supervisor is consistent with the width direction of tank floor；The wind turbine includes preceding transportation work style machine, way of escape wind turbine, is gone out Distinguish mating preceding road manifold, way of escape manifold in air port；The both ends of first supervisor are stretched out outside case, and one end is by being arranged preceding road the One valve connects preceding road manifold, the other end and connects way of escape manifold by the way that the first valve of the way of escape is arranged；The both ends of second supervisor It stretches out outside case, one end connects preceding road manifold, the other end by the way that the second valve of way of escape company is arranged by the way that preceding the second valve of road is arranged Meet way of escape manifold；The both ends of third supervisor are stretched out outside case, one end by be arranged preceding road third valve connect preceding road manifold, The other end connects way of escape manifold by the way that way of escape third valve is arranged.

3. a kind of biological treatment system of municipal sludge according to claim 2, it is characterised in that：The branch pipe Endcapped is uniformly arranged several round or ellipse ventholes on the tube wall of branch pipe.

4. a kind of biological treatment system of municipal sludge according to claim 2, it is characterised in that：The preceding road One valve, the first valve of the way of escape, the second valve of preceding road, the second valve of the way of escape, preceding road third valve, way of escape third valve are logical Cross the solenoid valve that signal cable is connect with PLC control centres.

5. a kind of biological treatment system of municipal sludge according to claim 1, it is characterised in that：The sludge is broken Broken machine uses Double-shaft shearing crusher.

6. a kind of biological treatment system of municipal sludge according to claim 1, it is characterised in that：The leaf powder Broken machine uses beater disintegrating machine.

7. a kind of biological treatment system of municipal sludge according to claim 1, it is characterised in that：The blender Using concrete mixer.

8. a kind of biological treatment system of municipal sludge according to claim 1, it is characterised in that：The wind turbine is adopted Use centrifugal fan.

9. a kind of biological treatment system of municipal sludge according to claim 1, it is characterised in that：The metallic plate Using stainless steel plate.

10. according to a kind of biological treatment system of any municipal sludges of claim 1-9, it is characterised in that：Institute It states thermal insulation board and uses polyurethane thermal insulation board.