CN106902930B - A kind of sludge organism body cell means for breaking walls and its method for sludge organism body cell broken wall - Google Patents
A kind of sludge organism body cell means for breaking walls and its method for sludge organism body cell broken wall Download PDFInfo
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- CN106902930B CN106902930B CN201710083934.XA CN201710083934A CN106902930B CN 106902930 B CN106902930 B CN 106902930B CN 201710083934 A CN201710083934 A CN 201710083934A CN 106902930 B CN106902930 B CN 106902930B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/10—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with one or a few disintegrating members arranged in the container
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/16—Mills in which a fixed container houses stirring means tumbling the charge
- B02C17/163—Stirring means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/1815—Cooling or heating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/183—Feeding or discharging devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/20—Disintegrating members
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/22—Lining for containers
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
- B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
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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
- C02F2303/06—Sludge reduction, e.g. by lysis
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of sludge organism body cell means for breaking walls and its for the method for sludge organism body cell broken wall, which includes jet stream feeding system, ore pulp cycle of higher pressure cavitation system, high-intensitive magnetic medium grinding system and cooling system；Sludge raw material is inputted in high-intensitive magnetic medium grinding system by jet stream feeding system, opening transmission system stirs blender, sludge grinding is set to promote sludge organism body cell broken wall, opening ore pulp cycle of higher pressure cavitation system simultaneously makes sludge slurry in magnetic stirring cylinder inner-outer circulation, and open cooling system and maintain temperature in magnetic stirring cylinder constant, until sludge organism body cell broken wall is completed；Which incorporates Maurice model, high-pressure homogeneous principle, Hydrodynamic cavitation principle, bubbles to stretch dispersion principle and static eddy flow principle etc., it can quickly, efficiently, it is realized with a low cost sludge organism body cell broken wall, operating process is simple and convenient to operate, and meets industrialized production.
Description
Technical field
The present invention relates to a kind of sludge treatment equipment, in particular to a kind of sludge cell wall breakage device and its for sludge it is thin
The method of born of the same parents' broken wall belongs to sewage resource technical field of comprehensive utilization.
Background technique
After National Development and Reform Committee in 2007 proposes the bill of energy-saving and emission-reduction, more and more people propose energy conservation and subtract
The gold-idea of row.In addition the phenomenon that the natural calamity and climate change that occur again and again in recent years are big, country proposed in 2008 again
The concept of " low-carbon " advocates low-carbon to this year also more and more people and lives.With the rapid development of economy, China
The handling rate of municipal sewage and industrial wastewater is also improved year by year, while also a large amount of along with also producing in processing stain disease
Sludge, it is reported that, 2009, urban wastewater treatment firm statistics in China's had 1992, and annual sewage load is up to 28,000,000,000 m3,
It is doubled compared to " 15 " initial stage, generates about 20,050,000 tons of sludge of moisture content 80%.Is produced from each municipal sewage plant of China
Raw wet mud up to more than 3,000 ten thousand tons, will account for 5% or more of China year total solid waste discharge amount.If sludge treatment is not
When not only a large amount of limited arable land of occupancy, can also cause serious pollution to ground surface environment and underground water.According to statistics, at this stage
The municipal sludge in China and the processing utilization rate of industrial sludge are less than 10%, the processing utilization rate away from such as U.S. of developed country
60%~70% differs greatly.In sewage treatment gross investment, the cost of sludge treatment facilities accounts for 50%~75%.And state
Family is about every year 50~100 yuan/ton or so for the expense of Sludge landfill, and by knowing above, China generates 25,000,000 within 2009
The sludge of ton counts 1,200,000,000~2,500,000,000 yuan then total cost is about 125000~2,500,000,000 yuan.So exploitation it is new, it is advanced
Technology, effectively handle sludge disposition, be allowed to turn waste into wealth, and not damage to the environment, be detrimental to health, open up environment friend
Good road, going on the track of sound progress is target that we persevere.
Activated sludge process is current dirty water living creature processing technique most widely used in the world, but its drawback is to generate greatly
Activated sludge more than the Retained of amount.These residual active sludges usually contain a certain amount of poisonous and harmful substance (such as parasitic ovum, cause of disease
Microorganism, heavy metal) and not stabilized organic matter, if without appropriate processing and disposition, it will caused directly to environment
It connects or potentially pollutes.Activated sludge is the general name of micropopulation and organic substance and inorganic substances that they are depended on.It is micro-
Biocenose mainly includes bacterium, protozoan and algae etc..Wherein, bacterium and protozoan are main two major classes.Activity
Sludge is referred to as biological floes from the appearance point of view, like wadding suede particle, and partial size is typically in the range of between 0.02-0.2MM.City is dirty
Aquatic organism handles the processing of plant excess sludge and disposition is a more stubborn problem.Its processing cost accounts for sewage treatment plant
The 25%~40% of overall running cost, even as high as 60%；The sludge mesophilic anaerobic digestion technique generallyd use, there is reactions
Speed is slow, and residence time of the sludge in pond is too long, and tank volume is huge, and operational administrative is complicated, and it is low etc. to produce methane content in gas
Disadvantage.During anaerobic sludge digestion, sludge hydrolytic is rate-limiting step.Using certain pretreatment mode, cell wall can be made
Rupture, cell inclusion dissolution, accelerates the hydrolytic process of sludge.To reach shortening digestion time, digestion pool volume is reduced, is mentioned
The purpose of high methane production.Currently, having physical method and chemical method, physical method about the method for sludge cell wall breakage technology both at home and abroad
There are heat treating process, high-pressure injection method, ultrasonication method, freezing processing method, irradiation method；Chemical method has alkali process method, ozone oxygen
Change method etc..Using different broken wall skill wood, the decomposition of cell and the release of organic matter intracellular in sludge can be promoted, improve sludge
Digestic property, accelerate digestion rate, improve gas production.In engineer application, according to actual needs, it is dirty to develop novel residue
Mud cell wall breaking technology is still the direction of primary study from now on.However, sludge moisture content is big, dried carbonization is at high cost, sludge money
Sourceization still faces huge problem.
Comminution technology has the characteristics that high-efficient, low energy consumption, is mainly used in the industry such as mine, cement row at present.Grind equipment
It is the key equipment in rock processing, rock processing is squeezed ore, impacted and ground using energy, makes to have in ore
With mineral monomer cleavage, the process sorted conducive to the next stage.Broken is squeeze to ore using mechanical energy keeping its broken
It splits, ore grinding is to make ore fragmentation using impact, grinding, degrade and reach cleavage.According to theory of comminution, reached by the way of broken
Energy consumed by a certain granularity is less than and is reached energy consumed by same granularity by the way of ore grinding, this is also usual engineering
Employed in " much broken and lessmill " scheme origin, this is considered from the consumption of energy.Semi-autogenous mill is part benefit
The equipment used ore itself, partially carry out ore grinding as milling medium using steel ball, from the viewpoint of energy effective utilization, using half
Autogenous tumbling mill ore grinding, energy consumption are relatively high.But semi-autogenous mill operation fine crushing, screening operation, ore instead of in transport link, make
Process shortens, and reduces dust generation, and generally speaking investment is saved, and operating cost reduces, and effect on environment is small.Meanwhile ore
Degrade grinding mainly by ore itself, steel ball consumption is low, small to the chemistry or Electrochemical forces of subsequent flotation operation, thus more
More to cause the concern of people.Ball mill is the equipment for carrying out ore grinding as milling medium using steel ball, and most universal, most logical
Grinding attachment, in recent years, with the increase of mine capacity and semi-autogenous mill specification, the specification of ball mill also increases quickly.
Chinese mugwort Sa grinding machine is the Pb-Zn separation by a kind of fine grinding equipment of the MountIsa mine invention of Australia, for the mine.This kind mill
Machine is to stir the principle that grinding is degraded using horizontal high speed to make mineral cleavage, and product granularity P80 can reach 7 μm.Ai Sa mill
The power level of machine is very big, and up to 350kW/m3, the milling medium that Chinese mugwort Sa grinding machine uses is ceramics, river sand, clinker etc..In the world
First Chinese mugwort Sa grinding machine (M3000) was put into operation in 1994 in MountIsa Lead-zinc concentrator, to currently, having nearly 20 Chinese mugworts
Sa grinding machine puts into operation, is respectively used to the recycling of the mineral such as gold, zinc, platinum.When being crushed to micron or submicron order, with coarse powder or
Fine powder is compared, and the specific surface area and specific surface energy of superfines rapidly increase, therefore in Jet Crushing, as granularity subtracts
It is small, subparticle reunite mutually (formed second particle or three times particle) trend between increase, in certain pulverization conditions and
It crushes under environment, after certain grinding time, ultra-fine grinding is in crushing-reunion homeostasis process, in this feelings
Under condition, the speed that Jet Crushing partial size reduces tends to slowly, even if extending grinding time (continuing to mechanical stress), object
The granularity of material may also no longer reduce, or even the trend of " thicker " (soldering) occur.This is the most important spy of Jet Crushing
One of point.Material size when this crushing-reunion balance occurs in Jet Crushing is referred to as " crushing the limit " of material.
Certainly, the crushing limit of material is opposite, applying mode (or type of milling machinery) and efficiency, the crushing of it and mechanical force
The factors such as mode, disintegrating process, crushing environment are related.
However, it is huge in sludge cell and ore properties difference, such as granularity, hardness, toughness, elasticity and water content etc.,
Traditional grinding apparatus is difficult to realize the high-efficiency wall breaking of cell.Therefore, how to design and be suitble in mature comminution theoretical basis
In sludge cell high-efficient broken wall unit, grinding apparatus advantage is given full play to, energy consumption is reduced, reduces cost, realizes that sludge is raw
The high-efficiency wall breaking of object component reduces sludge moisture content, and realizes the high-efficiency comprehensive utilization of sludge resource, for solve China or even
World's water treatment problems are of great significance.
Summary of the invention
The defects of there are at high cost, low efficiencys for various processing sludge broken walls in the prior art and method of resource, this
The purpose of invention is to be to provide a kind of quickly, to be efficiently realized with a low cost sludge organism body cell means for breaking walls；Device letter
Continuous processing single, that sludge may be implemented, it is easy to operate, be conducive to industrial application.
Another object of the present invention is to be to provide the sludge organism body cell means for breaking walls for sludge organism body
The method of breaking-wall cell, this method quickly, efficiently can be realized with a low cost sludge organism body cell broken wall, and method process it is simple,
It is easy to operate, meet industrialized production.
In order to achieve the above technical purposes, the present invention provides a kind of sludge organism body cell means for breaking walls, the device packets
Include jet stream feeding system, ore pulp cycle of higher pressure cavitation system, high-intensitive magnetic medium grinding system and cooling system；It is described high-strength
Degree magnetic medium grinding system includes magnetic stirring cylinder and blender, and centre, magnetic is arranged in magnetic stirring cylinder in blender
Property mixing drum in filled with abrasive media and ultra-fine magnetic grinding aid medium；Magnetic stirring cylinder top is equipped with discharge port, lower part
Equipped with feed inlet and circulation slurry inlet；The jet stream feeding system includes pan feeding pipeline, and pan feeding pipeline is equipped with Venturi tube
With to stock pump, pan feeding pipeline one end is connect with the feed inlet；The ore pulp cycle of higher pressure cavitation system includes circulating line, is followed
Endless tube road is equipped with Venturi tube and circulating pump, and circulating line one end is connect with slurry inlet is recycled, and the other end is from magnetic stirring
The top in magnetic stirring cylinder is protruded at cylinder top；Cooling system is equipped with outside the magnetic stirring cylinder.
Preferred scheme, the magnetic stirring cylinder inner wall are equipped with magnetic liner plate.The setting main function of magnetic liner plate be
In protection magnetic stirring cylinder, the surface of magnetic liner plate can adsorb a part of ferromagnetism particle, form a protective layer, reduce powder
To the impact and abrasion of magnetic stirring cylinder during mill.
Preferred scheme, the magnetic field strength of the magnetic liner plate are 500~800GS.
Preferred scheme, the blender include teeter column, and teeter column is equipped with the stirring rod of several groups cross arrangement.It is logical
The abrasive action that setting multiple groups stirring rod can make abrasive media and ultra-fine magnetic grinding aid medium give full play to it to sludge is crossed, is promoted
Microbial body quickly, high-efficiency wall breaking.
Preferred scheme, described teeter column one end extend to outside at the top of magnetic stirring cylinder and connect with transmission system.
Preferred scheme, the ultra-fine magnetic grinding aid medium granularity is less than 37 μm.Magnetic medium effect is embodied in two aspects,
On the one hand, magnetic medium, which is adsorbed on particulate matter, forms Magnetism granule, and Magnetism granule is adsorbed on magnetic liner plate surface, to magnetic
Property mixing drum play a protective role, on the other hand, it is ultra-fine magnetism grinding aid medium to particulate matter play extruding, friction or shearing make
With, promote sludge organism body cell wall broken wall, while magnetic medium can be recycled by magnetic separation technique, it is easy to use.
Preferred scheme, the ultra-fine magnetic grinding aid medium is by magnetic iron ore, maghemite, magnetic iron ore, rare-earth magnetic material
At least one of material is constituted.
Preferred scheme, filling rate of the abrasive media in magnetic stirring cylinder are 30~60%.
Preferred scheme, the abrasive media include that sphere diameter is 120 100 80 60 ㎜ and Φ 40 of ㎜, Φ of ㎜, Φ of ㎜, Φ of Φ
The steel ball and/or Ceramic Balls of ㎜, wherein sphere diameter is the steel ball of 100 ㎜ of Φ 120 ㎜ and Φ and/or Ceramic Balls quantitative proportion is
30%~40%, sphere diameter is the steel ball of 80 ㎜ of Φ and/or Ceramic Balls quantitative proportion is 30%~40%, sphere diameter is Φ 60 ㎜ and Φ
The steel ball and/or Ceramic Balls quantitative proportion of 40 ㎜ is 20~40%.
Preferred scheme, the cooling system include sandwich-type circulating water set, sandwich-type circulating water set package
Outside magnetic stirring cylinder.
Preferred scheme, sandwich-type circulating water set lower part are equipped with cooling water inlet, and top goes out equipped with cooling water
Mouthful.
Preferred scheme, Venturi tube most thin place maximum pressure are not less than 30MPa, and most thin place and thickness ratio
No more than 1:50.By the way that Venturi tube is arranged on circulating line and pan feeding pipeline, superpower pressure is on the one hand generated, is increased in moment
It will cause the swelling fracture of cell during pressure, discharge, another aspect getter action can form bubble cavitation during discharge
Effect, plays the role of bursting, the microfine bubble being formed simultaneously can pass through stretching action during being precipitated, becoming larger to cell wall
Promote agglomerated particle dispersion.
Preferred scheme, the Venturi tube most thin place are equipped with air intake.
Method the present invention also provides the sludge organism body cell means for breaking walls for sludge organism body cell broken wall,
Sludge raw material is inputted in the magnetic stirring cylinder of sludge organism body cell means for breaking walls by jet stream feeding system, opens power train
System stirs blender, and sludge raw material carries out grinding under abrasive media and ultra-fine magnetic grinding aid medium effect, makes sludge organism
Body cell broken wall, while opening ore pulp cycle of higher pressure cavitation system makes sludge slurry in magnetic stirring cylinder inner-outer circulation, Yi Jikai
Opening cooling system maintains temperature in magnetic stirring cylinder constant, until sludge organism body cell broken wall is completed.
Preferred scheme, the cooling system maintain in magnetic stirring cylinder that for temperature at 20~25 DEG C, agitator speed is big
In 5000r/min, grinding time is 5~15min.
Preferred scheme, the sludge moisture content of the raw material is 65~85%, pH is 7~8.
Preferred scheme, the ultra-fine magnetic grinding aid medium are 1~5kg/t with respect to the additive amount of sludge.
Preferred scheme, the sludge raw material are pre-processed using biological enzyme, addition of the biological enzyme in sludge raw material
Amount is 100~500g/t.Preferred scheme, the biological enzyme is by alpha-glucanase, 1,4 beta-glucanase, pectase, protease, sweet
Reveal carbohydrase and glusulase example 10:8~12:1~3:0.5~1.5:0.5~1.5:0.5~1.5 in mass ratio composition.Biological enzyme can
To promote cell-wall components to decompose, such as cellulose etc..
Sludge raw material in technical solution of the present invention is activated sludge.Such as municipal wastewater and trade effluent are by biochemical
Handle obtained sludge.These sludge include a large amount of microbial body.
Ultra-fine magnetic grinding aid medium in technical solution of the present invention in sludge can be recycled by magnetic separator, magnetic separation
The magnetic field strength that machine uses is 800~1500GS.
Sludge organism body cell means for breaking walls key component of the invention are as follows: high-speed stirred grinding system and high-pressure jet follow
Loop system, the two is complementary, complements each other.High-speed stirred grinding system principle: stirring-type comminution, the direct high speed of input power are used
Abrasive media is pushed to achieve the purpose that levigate material.Special construction is arranged on blender for blender built in magnetic stirring cylinder
Stirring rod, stirring rod make the irregular rolling in entire cylinder of abrasive media and material during revolution at a high speed, generate not
Regular motion makes to generate the double action mutually hit and ground between abrasive media, causes material finely ground and obtain
The good result of even dispersion.The main function of magnetic liner plate is that protection equipment inner wall liner plate, magnetic liner plate can be inhaled on surface
Attached a part of ferromagnetism particle forms a protective layer, reduces impact and abrasion in grinding process to liner plate.Magnetic medium is made
With embodying both ways, one side part magnetic-particle is adsorbed on magnetic liner plate surface protection liner plate, on the other hand as ultra-fine
Medium squeeze, friction or shearing cell wall, while magnetic medium can be recycled by magnetic separation technique.High-pressure jet circulation
System: using Venturi tube principle, on the one hand make slurries in comminution system by endless form improve comminution uniformity with
Efficiency；On the one hand superpower pressure is generated, will cause the swelling fracture of cell during moment pressurization, discharge, on the other hand inhales
Gas effect can form bubble cavitation during discharge, play the role of bursting to cell wall, the microfine gas being formed simultaneously
Bubble can promote agglomerated particle dispersion during being precipitated, becoming larger by stretching action.
Compared with the prior art, technical solution of the present invention bring the utility model has the advantages that
Sludge organism body cell means for breaking walls of the invention is former according to Maurice model, high-pressure homogeneous principle, Hydrodynamic cavitation
Reason, bubble stretch dispersion principle and static eddy flow principle etc. and design, and jet stream feeding system and ore pulp high pressure is made full use of to follow
The high pressure cavitation force that annular space system generates in jet process, using in high-intensitive magnetic medium grinding system grinding process
Impact and shearing force carry out depth destruction to cell wall, while preventing particle agglomeration and ultra-fine magnetism by bubble stretching action
Medium strengthens broken wall efficiency, realizes that sludge is quick, the high-efficiency wall breaking of microbial components, discharges cell liquid and cell-wall components,
Cell-wall breaking ratio is greater than 95%.
Sludge organism body cell means for breaking walls of the invention processing activated sludge process in can quickly, efficiently realize sludge
Biological cell broken wall, the operation is simple and convenient for method, at low cost, meets industrialized production.
Detailed description of the invention
[Fig. 1] is sludge organism body cell means for breaking walls schematic diagram of the invention；
Wherein, 1 is transmission system, and 2 be teeter column, and 3 be stirring rod, and 4 be abrasive media, and 5 be ultra-fine magnetic grinding aid medium,
6 be magnetic liner plate, and 7 be sandwich-type circulating water set, and 8 is, to stock pump, 9 are air intake, and 10 be discharge port, and 11 be circulation
Pump, 12 be air intake, and 13 be feed inlet, and 14 be cooling water inlet, and 15 be circulation slurry inlet, and 16 be circulating line, and 17 are
Pan feeding pipeline, 18 be Venturi tube, and 19 be cooling water outlet.
Specific embodiment
Following embodiment is intended to further illustrate the content of present invention, rather than limits the protection model of the claims in the present invention
It encloses.
The sludge organism body cell means for breaking walls schematic diagram used in following embodiment is as shown in Figure 1.Sludge organism body cell
Means for breaking walls main body includes jet stream feeding system, ore pulp cycle of higher pressure cavitation system, high-intensitive magnetic medium grinding system and cold
But system.High-intensitive magnetic medium grinding system mainly includes magnetic stirring cylinder and blender, and the inner wall of magnetic stirring cylinder is equipped with
Magnetic liner plate 6, the magnetic field strength of magnetic liner plate are 500~800GS.Centre is arranged in magnetic stirring cylinder in blender, stirs
Mixing device includes teeter column 2 and three groups of stirring rod 3, and every group of stirring rod (is preferably mutually perpendicular to) by two stirring rod by certain angle
Cross arrangement, one end of teeter column extend to outside magnetic stirring cylinder and connect with external transmission system 1.It is filled out in magnetic stirring cylinder
Filled with abrasive media 4 and ultra-fine magnetic grinding aid medium 5, abrasive media is generally steel ball, the loading in magnetic stirring cylinder
Be 30~60%, sphere diameter be the steel ball number ratio of 100 ㎜ of Φ 120 ㎜ and Φ be 35%, the steel ball number that sphere diameter is 80 ㎜ of Φ
The steel ball number ratio that ratio is 35%, sphere diameter is 40 ㎜ of Φ 60 ㎜ and Φ is 30%.Ultra-fine magnetism grinding aid medium is that partial size is small
In 37 μm of magnetic-particle material, such as magnetic iron ore, maghemite, magnetic iron ore, rareearth magnetic material, additive amount is according to dirt
The amount of mud determines.Magnetic stirring cylinder top is equipped with discharge port 10, and lower part is equipped with feed inlet 13 and circulation slurry inlet 15.
The jet stream feeding system includes pan feeding pipeline 17, and pan feeding pipeline is equipped with Venturi tube 18 and to stock pump 8, pan feeding pipeline one end
It is connect with the feed inlet, Venturi tube is mutually arranged between stock pump and feed inlet.The ore pulp cycle of higher pressure cavitation system packet
Circulating line 16 is included, circulating line is equipped with Venturi tube and circulating pump 11, and circulating line one end is connect with circulation slurry inlet,
The other end protrudes into the top in magnetic stirring cylinder at the top of magnetic stirring cylinder, and Venturi tube setting enters in circulating pump and circulation slurry
Between mouthful, Venturi tube most thin place maximum pressure is not less than 30MPa, and most thin place and thickness ratio are not more than 1:50；It is described
Venturi tube most thin place is equipped with air intake 9.Cooling system is equipped with outside the magnetic stirring cylinder, cooling system includes sandwich-type
Circulating water set 7, sandwich-type circulating water set are wrapped in outside magnetic stirring cylinder.Under the sandwich-type circulating water set
Portion is equipped with cooling water inlet 14, and top is equipped with cooling water outlet 19.
The method that sludge cell wall breakage is carried out using sludge organism body cell means for breaking walls of the invention.Sludge material is led to
It crosses jet stream feeding system to be fed, sludge material is by Venturi tube treated decompression material to be higher than velocity of sound speed along powder
Mill equipment inner wall tangential direction is spurted into the magnetic stirring cylinder of high speed grinding system, and opening transmission system stirs blender,
So that sludge is carried out grinding under abrasive media and ultra-fine magnetic grinding aid medium effect, makes sludge organism body cell broken wall, open simultaneously
Opening ore pulp cycle of higher pressure cavitation system makes sludge slurry in magnetic stirring cylinder inner-outer circulation, and ore pulp cycle of higher pressure cavitation system is also set
There is Venturi tube, so that sludge material is higher than velocity of sound speed and spurt into high speed grinding system along milling equipment inner wall tangential direction
Magnetic stirring cylinder in, open cooling system and maintain temperature in magnetic stirring cylinder constant, until sludge organism body cell broken wall is complete
At.
Embodiment 1
Municipal sewage plant municipal sludge, water content about 81% are handled using this process.It is added into sludge
(complex enzyme presses matter by alpha-glucanase, 1,4 beta-glucanase, pectase, protease, seminase and glusulase to complex enzyme 200g/t
Amount ratio 10:10:2:1:1:1 composition), adjusting pH with sodium hydroxide is 7.5,20-25 DEG C of temperature is maintained, with 500r/min speed
2h is stirred, the pretreatment of sludge organism cell wall is carried out；Then it is the magnetic medium (magnet less than 37 μm that fineness is added into sludge
Mine) 1000g/t, being transferred to progress high speed in the stirring-type high-speed pulverizer that steel ball filling rate is 50%, (revolving speed is about 6000r/
Min) grinding 10min carries out depth broken wall；Magnetic medium is recycled simultaneously with the magnetic separator that magnetic field strength is 800GS after the completion of broken wall
Reuse, sludge are separated by solid-liquid separation through centrifuge centrifugation, and supernatant liquor obtains polysaccharide and egg after concentration, alcohol precipitation and drying process
White matter organic substance；Solid component enters the carbide furnace 60min that temperature is 800 DEG C, obtains 1~10mm of carbonized particles granularity, Gu
Determine carbon content 40%, content of ashes 60% can be used as adsorbent and fuel.
Organic component is used as persimmon bamboo plantation fluorite inhibitor, persimmon bamboo plantation fluorite green ore CaF2Content 21%, calcite
Content 6.8%, garnet content 34%.Sludge organic matter inhibits as calcite and garnet during fluorite
Agent, roughing dosage are 500g/t, and single-minded to smart nine dosage is respectively 100,100,50,50,50,30,30,20,10g/t, are obtained
CaF2Grade is greater than 93% fluorite concentrate, and calcite content is less than 1%.
1 persimmon bamboo plantation fluorite test result of table
Embodiment 2
Industrial park sludge sewage, water content about 72% are handled using this process.Into sludge
Complex enzyme 300g/t is added, and (complex enzyme is by alpha-glucanase, 1,4 beta-glucanase, pectase, protease, seminase and glusulase
The composition of example 10:12:1:1.5:0.8:0.8 in mass ratio), adjusting pH with sodium hydroxide is 7.8,20-25 DEG C of temperature is maintained, with
300r/min speed stirs 1h, carries out the pretreatment of sludge organism cell wall；Then it is less than 37 μm that fineness is added into sludge
Magnetic medium (magnetic iron ore) 1000g/t is transferred to and carries out (turning at a high speed in the stirring-type high-speed pulverizer that steel ball filling rate is 30%
Speed is about 6000r/min) grinding 15min, carry out depth broken wall；It is returned after the completion of broken wall with the magnetic separator that magnetic field strength is 500GS
Magnetic medium and reuse are received, sludge is separated by solid-liquid separation through plate and frame filter press, and supernatant liquor is by concentration, alcohol precipitation and drying process
Polysaccharide and protein organic substance are obtained afterwards；Solid component enters the carbide furnace 50min that temperature is 700 DEG C, obtains carbonized particles grain
5-10mm, fixed carbon content 35% are spent, content of ashes 65% can be used as fuel.
Organic component is used as iron ore reverse flotation inhibitor, Ma'an Mountain's iron ore raw ore TFe content 55%, quartz content
11.8%,.Using Counterfloatating desiliconization technology, lauryl amine as fluorite collecting agent, sludge organic matter as Fe containing component inhibitor,
Roughing dosage is 300g/t, sweeps process through a thick essence two and obtains TFe grade greater than 65%, the high-quality iron of the rate of recovery 91% is smart
Mine.
Claims (10)
1. a kind of sludge organism body cell means for breaking walls, it is characterised in that:
Including jet stream feeding system, ore pulp cycle of higher pressure cavitation system, high-intensitive magnetic medium grinding system and cooling system；
The high intensity magnetic medium grinding system includes magnetic stirring cylinder and blender, and blender is arranged in magnetic stirring cylinder
Centre, magnetic stirring cylinder is interior to be filled with abrasive media and ultra-fine magnetic grinding aid medium；Magnetic stirring cylinder top is equipped with
Discharge port, lower part are equipped with feed inlet and circulation slurry inlet；
The jet stream feeding system includes pan feeding pipeline, and pan feeding pipeline is equipped with Venturi tube and to stock pump, pan feeding pipeline one end
It is connect with the feed inlet；
The ore pulp cycle of higher pressure cavitation system includes circulating line, and circulating line is equipped with Venturi tube and circulating pump, circulation
Pipeline one end is connect with circulation slurry inlet, and the other end protrudes into the top in magnetic stirring cylinder at the top of magnetic stirring cylinder；
Cooling system is equipped with outside the magnetic stirring cylinder.
2. sludge organism body cell means for breaking walls according to claim 1, it is characterised in that: the magnetic stirring cylinder inner wall
Equipped with magnetic liner plate；The magnetic field strength of the magnetic liner plate is 500~800GS.
3. sludge organism body cell means for breaking walls according to claim 1, it is characterised in that: the blender includes stirring
Column, teeter column are equipped with the stirring rod of several groups cross arrangement；Described teeter column one end extend at the top of magnetic stirring cylinder it is outer with
Transmission system connection.
4. sludge organism body cell means for breaking walls according to claim 1, it is characterised in that: the ultra-fine magnetic grinding aid is situated between
Plasmid degree is less than 37 μm；The ultra-fine magnetic grinding aid medium is by magnetic iron ore, maghemite, magnetic iron ore, rareearth magnetic material
At least one is constituted.
5. sludge organism body cell means for breaking walls according to claim 1, it is characterised in that: the abrasive media is in magnetism
Filling rate in mixing drum is 30~60%；The abrasive media includes that sphere diameter is Φ 120mm, Φ 100mm, Φ 80mm, Φ
The steel ball and/or Ceramic Balls of 60mm and Φ 40mm, wherein sphere diameter is the steel ball and/or Ceramic Balls number of Φ 120mm and Φ 100mm
The steel ball and/or Ceramic Balls quantitative proportion that amount ratio is 30%~40%, sphere diameter is Φ 80mm be 30%~40%, sphere diameter Φ
The steel ball and/or Ceramic Balls quantitative proportion of 60mm and Φ 40mm is 20~40%.
6. sludge organism body cell means for breaking walls according to claim 1, it is characterised in that: the cooling system includes folder
Laminar circulating water set, sandwich-type circulating water set are wrapped in outside magnetic stirring cylinder；The sandwich-type circulating water
It covers lower part and is equipped with cooling water inlet, top is equipped with cooling water outlet.
7. sludge organism body cell means for breaking walls according to claim 1, it is characterised in that: the Venturi tube most thin place
Maximum pressure is not less than 30MPa, and most thin place and thickness ratio are not more than 1:50；The Venturi tube most thin place is equipped with air
Entrance.
8. the side that any one of the claim 1~7 sludge organism body cell means for breaking walls is used for sludge organism body cell broken wall
Method, it is characterised in that: sludge raw material is inputted to the magnetic stirring of sludge organism body cell means for breaking walls by jet stream feeding system
In cylinder, opening transmission system stirs blender, and sludge raw material carries out under abrasive media and ultra-fine magnetic grinding aid medium effect
Grinding makes sludge organism body cell broken wall, while opening ore pulp cycle of higher pressure cavitation system makes sludge slurry in magnetic stirring cylinder
Inner-outer circulation, and open cooling system and maintain temperature in magnetic stirring cylinder constant, until sludge organism body cell broken wall is completed.
9. the method that sludge organism body cell means for breaking walls is used for sludge organism body cell broken wall according to claim 8,
Be characterized in that: for temperature at 20~25 DEG C, agitator speed is greater than 5000r/ in the cooling system maintenance magnetic stirring cylinder
Min, grinding time are 5~15min.
10. the method that sludge organism body cell means for breaking walls is used for sludge organism body cell broken wall according to claim 8,
Be characterized in that: the moisture content of the sludge raw material is 65~85%, pH is 7~8；The ultra-fine magnetic grinding aid medium is with respect to sludge
The additive amount of raw material is 1~5kg/t；The sludge raw material is pre-processed using biological enzyme, and biological enzyme is in sludge raw material
Additive amount is 100~500g/t；The biological enzyme is by alpha-glucanase, 1,4 beta-glucanase, pectase, protease, seminase
It is the composition of 10:8~12:1~3:0.5~1.5:0.5~1.5:0.5~1.5 with glusulase example in mass ratio.
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| CN109607814B (en) * | 2018-12-04 | 2021-11-19 | 大连理工大学 | Alkaline hydrolysis process for preparing excess sludge of biological flocculant |
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| JP2002219493A (en) * | 2001-01-25 | 2002-08-06 | Chuo Kakoki Kk | Method for treating sludge |
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