Biogas Digester of Anaerobic Fermentation
Made of Enamel Steel Panel
Introduction About Our Steel Panel Factory
Founded Time:
1989;
Main Products:
Enamel Steel Panel&Bolted Tank;
Role In the industry:
1, The biggest and most professional manufacturer of anaerobic digester of enamel steel panel in China;
2,The enamel steel panel production base in China,as well as the first one to produce double-sides enamel hot-rolled steel panel in China;
Plant Floor Area:
80,000 Square Meters;
Employee No.:
More than 500;
D&R Department No.:
More than 30,inclusive of 8 experts with Master's degree and 10 years' experiences in enamel coating field;
Experiment&Testing Equipment No.:
More than 100;
Introduction About Bolted Tank
Technical Process
Enamel coating is the traditional anti-corrosion technology for steel panel,it have beautiful appearance,delicate texture.Adopt first-class enameling production technology and special enamel steel,products quality reaches international standards;
Assembly
It consists of enamel steel panel,special sealant and self-locking bolts;
Application Fields
Various engineering works,like industrial&agricultural sewage,urban waste-water treatment and anaerobic digester for biogas generation etc;
Production Process
- Titanium alloy steel panel;Steel panel to be coated;Spray coating;Panel being enamelled;Measure&Testing of coating thickness;Spark test;The qualified steel panel;Packing of qualified enamel steel panel;
Feature of Enamel Steel Panel
| Item |
Specification |
| Coating Color |
Dark Green and can be customized |
| Coating Thickness |
0.20~0.40mm,Double coated |
| Panel Thickness |
3~20mm |
| Acid&Alkalinity Proof |
Standard pH:3~11,Special pH:1~14 |
| Adhesion |
3,450 N/cm |
| Elastic |
Same as steel panel,around 500 kN/mm |
| Hardness |
6.0 Mohs |
| Life Time |
≥ 30 years |
| Holiday/Spark Test |
> 1500V |
| Permeability |
Gas&liquid impermeable |
| Easy for Cleaning |
Smooth,Glossy,Inert,Anti-adhesion |
| Corrosion resistance |
Excellent,suitable for waste-water,salt water,sea water,high sulfur crude oil,salt box,organic and inorganic compounds |
Advantages of Enamel Bolted Tank
- Very beautiful appearance;Temperature adaption: can be operated under low ambient temperature;In round shape,grounded or underground;Easy for clean and O&M;Good performance in abrasion&corrosion&impact resistance,good insulation and anti-static,can be heated(for example hot water from CHP);Low weight,anti-corrosive treatment no needed,low investment;Green,white,blue or other colors available;Coating thickness 0.2~0.4mm available;Steel panel thickness 3~20mm available;Excellent acid&alkali resistance;Strong pressure standing ability with high hardness 6~7 Mohs;Easy,safe and fast installation,only 10~20 days required according to different volumes,unaffected by the weather;Possible for moving to other places with low cost;Long life-time: 30 years;
Application Fields of Enamel Bolted Tank
Power and Energy
Biogas biomass,Fuel oil,diesel,Aviation oil,Kerosene,Drilling mud,Process water,DI Water,Reverse osmosis water,boiler feed-water,coal storage and Fly ash silo;
Water Supply and Treatment
Potable water,Water purifying tank,RO water,Bitter-brackish water,Disinfecting water,sea water desalinization,Raw water/fresh water,Fire-fighting water,lime silo,Irrigation water,saline water/brine water,clarification pool,Biological filter,sedimentation container and aeration tank;
Water-water Treatment
Buffer pool,Regulating tank,Water purifying tank,aerobic reactor,anaerobic reactor,sedimentation container,biological filter,leachate storage,sludge tank,effluent treatment,irrigation water and animal manure;
Industrial Dry Bulk Storage
Mineral,Chemicals,Foods,Wood product,Petrochemicals,Plasthetics,Stone/clay/glass,Mining industrial and grain/seeds;
Application of Enamel Bolted Tanks in Biogas Fields
CSTR reactor
- CSTR,full name is Continuous Stirring Tank Reactor;A kind of complete stirring reactor,consists of enamel bolted tank,stirring mechanism,waste input/output system,positive/negative pressure protector etc;Stirring mechanism types:Mechanical,Hydraulic and Gas Agitation;Heating Coils as a optional item displayed inside of tank,by using hot water from CHP unit or boiler of burning biogas or coal;Insulating layer as a optional item,to avoid heat leaking in cold areas;CSTR reactor is applied to waste water with high concentration or plenty of suspended particles(8~12%),like pig/cow manure,aerobic activated sludge from sewage treatment works,etc;Waste input: Stable temperature waste input continuously or semi-continuous;Working Principle:Waste enters tank,mixed with microorganism through stirring mechanism,slurry flows out of tank at upper location while residue discharged regularly at bottom exits;Gas holder can be mounted on top of reactor(Integrated CSTR),or be free-standing separated from reactor while top of tank is covered by enamel steel panel etc;Stairs,platform,observation port,pH&temperature measurements,middle support bar,demister,air blower etc to be installed according to actual design;Maximal single capacity is 5,000 cubic meters;
USR reactor
- USR,full name is Up-flow Solids Reactor;Heating Coils as a optional item displayed inside of tank,by using hot water from CHP unit or boiler of burning biogas or coal;Insulating layer as a optional item,to avoid heat leaking in cold areas;USR reactor is applied to waste with high suspended solid particles or low concentration,like poultry manure,vinasse etc;Working Principle:Waste enters tank through bottom entrance,mixed with activated sludge,to be digested quickly;The undigested biomass solid particles and anaerobic microorganism are kept in reactor through natural sedimentation;The supernate flows out of tank at upper exit;In this way,make Solid Retention Time(SRT) and Microorganism Retention Time(MRT) longer than Hydraulic Retention Time(HRT),to make high decomposition rate of solid particles and biogas generation efficiency;Gas holder can be mounted on top of reactor(Integrated USR),or be free-standing separated from reactor while top of tank is covered by enamel steel panel etc;Stairs,platform,observation port,pH&temperature measurements,middle support bar,demister,air blower etc to be installed according to actual design;Maximal single capacity is 1,000 cubic meters,be subject to technical process;
UASB reactor
- UASB,full name is Up-flow Anaerobic Sludge Blanket;UASB reactor consists of enamel tank,waste input&water distributor,gas-liquid-sludge separator,water output system,etc;Heating Coils as a optional item displayed inside of tank,by using hot water from CHP unit or boiler of burning biogas or coal;Insulating layer as a optional item,to avoid heat leaking in cold areas;UASB reactor is applied to high concentration industrial organic sewage;Working Principle:Waste water enters reactor at bottom location,through waster distributor,flows up to activated sludge blanket;Biogas is generated at the collision of waste and sludge particles;The generation of biogas makes internal recycling,good for formation and maintenance of sludge particles;The adherent biogas and clean biogas up-flows to bottom of gas-liquid-sludge separator;Pure biogas comes out of sludge floc,then sludge particles sediment to the surface of sludge blanket while pure biogas goes into gas-gathering chamber;Quantities of Gas-liquid-Sludge separators can be one or two according to actual design and characteristics of waste;Gas holder is usually designed to be free-standing separated from reactor while top of tank is covered by gas-moisture separator etc;Stairs,platform,observation port,pH&temperature measurements,demister,air blower etc to be installed according to actual design;EGSB(Expanded Granular Sludge Blanket) is a kind of improved reactor based on UASB,main feature is big anaerobic activated sludge particles;OLR(Organic Loading Rates) is about 6~25kg COD/m3,2~5 times higher than UASB;High height-diameter ratio,floor area occupation less than UASB;Speed of sludge particles sedimentation is faster than bio gas up-flows,avoid sludge running out,operation more stable;With strong shock resistance;Low Operation&Maintenance cost;
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