Sealed Storage Tank Brochure

Reactor tanks for biogasassentoft silo155013_ASSENTOFT_SILO_BIOGASBROCHURE_UK_REV_2012.indd 1 07/11/12 11.102Assentoft Silo supplies biogas reactor and storage tanks made from bolted steel plates, insulated, if required. Twenty-five years of experience in biogas projects and other major industrial projects throughout Europe makes Assentoft Silo an attractive partner, providing active coaching and help in designing your complete system.Design of your biogas plantIn the tender and design phase, we prepare 3D drawings and films to illustrate the plant.We help designing the plant and positioning the spools, components and equipmentIn cooperation with our experienced project managers design and placement of connectors and components is determined and illustrated in detailed drawings.Biogas tanks from Assentoft Silo A/SWe often perform many versions of a plant, before the final design is determined.155013_ASSENTOFT_SILO_BIOGASBROCHURE_UK_REV_2012.indd 2 07/11/12 11.103Choosing the right reactor tank¦ Selection and composition of materials - glass enameled, stainless steel, epoxy coated or galvanized steel sheets - as well as a choice between insulated steel roof or membrane roof.¦ Sizes from 500 m³ to 7,000 m³ with optional combination of height and diameter.¦ Suitable for center stirrer, side mounted stirrer and gasmix. ¦ Used as both primary and secondary reactor vessels and storage tanks.¦ Minimization of heat loss by effectively insulation of the tank wall and the roof.Documentation of the plantA thorough static calculation is provided with every tank according to current Eurocodes standards, taking local wind loads, snow loads, operating pressure, vacuum, and influences from stirrer into consideration. This static calculation can be used for project approval by the authorities.Assentoft Silo’s reactor tanks provide maximum flexibility in:155013_ASSENTOFT_SILO_BIOGASBROCHURE_UK_REV_2012.indd 3 07/11/12 11.104In collaboration with the two leading manufacturers of insulation, Assentoft Silo has developed a calculation of heat losses in the steel and concrete reactor tanks. To be used when comparing total costs for a project.Help calculating operating and construction costs for a plantAbove is an example of a complete estimate for a customer in Denmark.Enter the following Steel reactor tank Concrete reactor tankThe price for heating i kW DKK 0.25 DKK 0.25Price pr. kW DKK 0.25 DKK 0.25Interest rate 6% 6 %The cost of the tank is amortirized over 20 years 20 yearsDiameter 17.01 m 32.00 mHight - tank wall 17.75 m 5.00 mInsulation thickness: roof 200 mm 20 mmInsulation thickness: wall 200 mm 100 mmInsulation thickness: foundation 150 mm 150 mmTank price incl. insulation, foundation and agitator DKK 3,300,000 DKK 2,700,000Construction grants 30 % 30 %Total yearly expenses for the whole tank Steel reactor tank Concrete reactor tankThermophillic Mesophillic Thermophillic MesophillicVolume gross 4030 m³ 4020 m³Volumes net with 0.5 mm freeboard 3890 m³ 3620 m³Price, deducting the construction grant DKK 2,310,000.00 DKK 1,890,000.00Costs,tank investment ,amort.over: 20 years DKK 201,396 DKK 201,396 DKK 164,779 DKK 164,779Costs for heat loss per year, roof DKK 5,771 DKK 2,918 DKK 140,403 DKK 89,311Costs for heat loss per year, tank wall DKK 23,296 DKK 11,780 DKK 19,396 DKK 12,274Costs for heat loss per year, foundation DKK 10,961 DKK 5,549 DKK 31,034 DKK 19,639Cost of power for stirring per year DKK 31,536 DKK 31,536 DKK 78,840 DKK 78,840Cost for pumping the biomass, per yearCost for pumping the gas, per yearCost of maintenance, per yearOther operating expenses, per yearAnnual expenditure, total DKK 272,960 DKK 253,180 DKK 434,453 DKK 364,842Note. You will need 3 stirrers for a concrete tank but only one top-mounted stirrer for a steel tank.Comparison of a 4030 m³ steel tank and a 4020 m³ concrete tank155013_ASSENTOFT_SILO_BIOGASBROCHURE_UK_REV_2012.indd 4 07/11/12 11.105In-house production of components for biogas plants¦ Assentoft Silo buys steel in large quantities, directly at the steel mills.¦ Angle iron, ladders, platforms, railings, spools,flanges, etc. are efficiently produced in our own workshop.¦ Flanges are welded on to pipes and bends, galvanized or sandblasted and coated on our own plant.¦ Electric control is designed and produced in our own electrical workshop.Purchasing services from Assentoft Silo includes25 years of experience in building biogas tanks, includingDenmark’s first tank from 1988 to Nordvestjysk Folkecenter, and more than 30 reactor tanks in Denmark subsequent. When buying tanks from Assentoft Silo, you are as close as possible to the tank manufacturer. Therefore, the quality is high - and the price reasonable.Enter the following Steel reactor tank Concrete reactor tankThe price for heating i kW DKK 0.25 DKK 0.25Price pr. kW DKK 0.25 DKK 0.25Interest rate 6% 6 %The cost of the tank is amortirized over 20 years 20 yearsDiameter 17.01 m 32.00 mHight - tank wall 17.75 m 5.00 mInsulation thickness: roof 200 mm 20 mmInsulation thickness: wall 200 mm 100 mmInsulation thickness: foundation 150 mm 150 mmTank price incl. insulation, foundation and agitator DKK 3,300,000 DKK 2,700,000Construction grants 30 % 30 %155013_ASSENTOFT_SILO_BIOGASBROCHURE_UK_REV_2012.indd 5 07/11/12 11.106PipingPipes, bends, spools etc. of any size can be supplied according to customer requirements Produced, sandblasted and coated at our factory in North Jutland.Control panels for controlling biogas plantsWe have a large production of electric control pa-nels for our silo plants, also for industrial purposes and biogas.Our electric control panels are made with PLC and touch screen for management and monitoring of the biogas plant. Including connection to analog and digital input signals and perhaps connection to the internetfor external monitoring and service. We can also offer GSM based alarm system, calling up to more than one priority-controlled numbers for voice or text message.155013_ASSENTOFT_SILO_BIOGASBROCHURE_UK_REV_2012.indd 6 07/11/12 11.107Assentoft Silo secures a satisfying result that lasts- 500 industrial projects and 4,000 farm silo projects throughout Europe is the proof.Reactor tanks from Assentoft Silo are designed for 30 years of operation.Standard operating pressure in a steel tank is 0.03 mbar or 300 mm water column, whichmoves the gas on in the process without a gas blower.The tanks are suitable for both thermophilic and mesophilic operation - or switching between the two types.Tanks, where the diameter and height corresponds to each other, is less expensive to stir, and it is easier to obtain an effective stirring without any dead zones and channeling. This provides higher gas production and more efficient use of the tank.With bolted tanks a short erection time is required , and there is no hot work on the site.The 2,000 m³ reactor tank built for ComBigaS east of Berlin in 2011 (before insulation).155013_ASSENTOFT_SILO_BIOGASBROCHURE_UK_REV_2012.indd 7 07/11/12 11.108In Denmark and other European countries, Assentoft Silo delivers effective and reliable project management3.300 m3 silo for cement delivered in France, 2009.Assentoft Silo provides complete tank or silo solutions also for storage of grain, maize kernel, cement, sand, bitumen, fish oil etc. In addition we act as subcontractor of tanks and silos for leading Danish suppliers of e.g. concrete plants, asphalt plants and flue gas cleaning filters.155013_ASSENTOFT_SILO_BIOGASBROCHURE_UK_REV_2012.indd 8 07/11/12 11.109Section from size chart with tanksVolumeinthesiloshellm³(AtftSiltddlti242881179)Volume in the silo shell m³ (Assentoft Silo standard plate sizes 2.4288 x 1.179)Volume in the silo shell m (Assentoft Silo standard plate sizes 2.4288 x 1.179)456789101112131415161718192021No. of rings456789101112131415161718192021No. of rings456789101112131415161718192021Height4785967148329501068118613041422154016581776189420112129224723652483Height4,785,967,148,329,5010,6811,8613,0414,2215,4016,5817,7618,9420,1121,2922,4723,6524,83g,,,,,,,,,,,,,,,,,,DiamSheetsDiam.Sheets3875567084981121251391531671811952082222362502642782913,875567084981121251391531671811952082222362502642782914646811011211411611812002202402602803003203403603804004204,646811011211411611812002202402602803003203403603804004205,4171101371641912192462733003273543814084364634905175445715,41711013716419121924627330032735438140843646349051754457161881441792152502853213563924274634985335696046406757117466,1881441792152502853213563924274634985335696046406757117466,18814417921525028532135639242746349853356960464067571174669691822272723163614064514965415856306757207658108558999446,9691822272723163614064514965415856306757207658108558999447731022528033539144650155761266772377883488994410001055111011667,73102252803353914465015576126677237788348899441.0001.0551.1101.1668,50112723394064735406076747418088759421.0091.0761.1431.2101.2761.3431.4108,50112723394064735406076747418088759421.0091.0761.1431.2101.2761.3431.4109,28123234034835636427228028819611.0411.1211.2001.2801.3601.4391.5191.5991.6799,28123234034835636427228028819611.0411.1211.2001.2801.3601.4391.5191.5991.6791005133804735676607548479411034112812221315140915021596168917831876197010,05133804735676607548479411.0341.1281.2221.3151.4091.5021.5961.6891.7831.8761.970,10821444054965776687498310911200130814171525163417421851195920682176228510,82144405496577668749831.0911.2001.3081.4171.5251.6341.7421.8511.9592.0682.1762.2851160155056307548791004112812531377150216261751187520002125224923742498262311,60155056307548791.0041.1281.2531.3771.5021.6261.7511.8752.0002.1252.2492.3742.4982.62312,37165757178581.0001.1421.2841.4251.5671.7091.8501.9922.1342.2762.4172.5592.7012.8422.98412,37165757178581.0001.1421.2841.4251.5671.7091.8501.9922.1342.2762.4172.5592.7012.8422.98413141764980996911291289144916091769192920892249240925692729288930493209336913,14176498099691.1291.2891.4491.6091.7691.9292.0892.2492.4092.5692.7292.8893.0493.2093.36913,14176498099691.1291.2891.4491.6091.7691.9292.0892.2492.4092.5692.7292.8893.0493.2093.369139218728907108612661445162518041983216323422521270128803059323934183597377713,92187289071.0861.2661.4451.6251.8041.9832.1632.3422.5212.7012.8803.0593.2393.4183.5973.777,1469198111011121114101610181020102210241026092809300932093409360938084008420814,69198111.0111.2111.4101.6101.8102.0102.2102.4102.6092.8093.0093.2093.4093.6093.8084.0084.2081546208981120134115631784200622272448267028913113333435563777399842204441466315,46208981.1201.3411.5631.7842.0062.2272.4482.6702.8913.1133.3343.5563.7773.9984.2204.4414.66316,24219911.2351.4791.7231.9672.2112.4552.6992.9433.1883.4323.6763.9204.1644.4084.6524.8965.14116,24219911.2351.4791.7231.9672.2112.4552.6992.9433.1883.4323.6763.9204.1644.4084.6524.8965.14117012210871355162318912159242726952963323034983766403443024570483851065374564217,01221.0871.3551.6231.8912.1592.4272.6952.9633.2303.4983.7664.0344.3024.5704.8385.1065.3745.64217,01221.0871.3551.6231.8912.1592.4272.6952.9633.2303.4983.7664.0344.3024.5704.8385.1065.3745.64217782311881481177420672360265229453238353138244117440947024995528855815874616617,78231.1881.4811.7742.0672.3602.6522.9453.2383.5313.8244.1174.4094.7024.9955.2885.5815.8746.16618552412941613193122502569288832073526384541634482480151205439575860766395671418,55241.2941.6131.9312.2502.5692.8883.2073.5263.8454.1634.4824.8015.1205.4395.7586.0766.3956.71419,33251.4041.7502.0962.4422.7883.1343.4803.8264.1724.5184.8645.2105.5565.9016.2476.5936.9397.28519,33251.4041.7502.0962.4422.7883.1343.4803.8264.1724.5184.8645.2105.5565.9016.2476.5936.9397.28520,10261.5181.8932.2672.6413.0153.3893.7644.1384.5124.8865.2605.6356.0096.3836.7577.1317.5067.88020,10261.5181.8932.2672.6413.0153.3893.7644.1384.5124.8865.2605.6356.0096.3836.7577.1317.5067.88020872716372041244528483252365540594462486652695673607664806883728776918094849820,87271.6372.0412.4452.8483.2523.6554.0594.4624.8665.2695.6736.0766.4806.8837.2877.6918.0948.498,21652817612195262930633497393143654799523356676101653569697403783782718705913921,65281.7612.1952.6293.0633.4973.9314.3654.7995.2335.6676.1016.5356.9697.4037.8378.2718.7059.1392242291889235528203286375142174682514856136079654470107475794184078872933822,42291.8892.3552.8203.2863.7514.2174.6825.1485.6136.0796.5447.0107.4757.9418.4078.8729.33823,19302.0222.5203.0183.5164.0144.5135.0115.5096.0076.5057.0047.5028.0008.4988.9969.4959.99323,19302.0222.5203.0183.5164.0144.5135.0115.5096.0076.5057.0047.5028.0008.4988.9969.4959.9932474322300286734344001456751345701626868357402796885359102966910236108031137024,74322.3002.8673.4344.0014.5675.1345.7016.2686.8357.4027.9688.5359.1029.66910.23610.80311.37024,74322.3002.8673.4344.0014.5675.1345.7016.2686.8357.4027.9688.5359.1029.66910.23610.80311.3702629342597323638764516515657966436707677168356899696361027510915115551219526,29342.5973.2363.8764.5165.1565.7966.4367.0767.7168.3568.9969.63610.27510.91511.55512.195,278336291136284346506357816498721579338650936810085108021152012237129551367227,83362.9113.6284.3465.0635.7816.4987.2157.9338.6509.36810.08510.80211.52012.23712.95513.67229383832434043484256416441724080398839963810437112371203612835136351443429,38383.2434.0434.8425.6416.4417.2408.0398.8399.63810.43711.23712.03612.83513.63514.43430,92403.5944.4805.3656.2517.1378.0228.9089.79410.67911.56512.45113.33614.22230,92403.5944.4805.3656.2517.1378.0228.9089.79410.67911.56512.45113.33614.222340244434954206492756486359707107791185012922139941506534,02444.3495.4206.4927.5648.6359.70710.77911.85012.92213.99415.06534,02444.3495.4206.4927.5648.6359.70710.77911.85012.92213.99415.065371148517564517726900110277115521282714103153781665437,11485.1756.4517.7269.00110.27711.55212.82714.10315.37816.654402052607475709067105641206113558150541655140,20526.0747.5709.06710.56412.06113.55815.05416.55146,39608.08610.07912.07214.06516.05718.05046,39608.08610.07912.07214.06516.05718.050155013_ASSENTOFT_SILO_BIOGASBROCHURE_UK_REV_2012.indd 9 07/11/12 11.1010All-welded silos and tanksRational storage and handling of dry products/residues and liquid raw materials for biogas production. Welded tanks and silos from 10 m³ and up to 150 m³, designed, produced and supplied on site.On our own factory in North Jutland 15 certified welders produce tanks, silos and piping systems. The tanks are sandblasted and epoxy treated in our own paint shop and insulated, if required by customer.The tanks are made as standard products – with the possibility of equippingafter customer demand.Diameters from 2546 to 4500 mm.155013_ASSENTOFT_SILO_BIOGASBROCHURE_UK_REV_2012.indd 10 07/11/12 11.1011Example of equipment on an all-welded siloWAM SILO TOP FILTER WITH FILTER FLANGEALUMINIUM ACCESS HATCHLEVEL INDICATORWELDED LADDERPOSITIVE/NE-GATIVE PRES-SURE VALVEROOF RAILINGSTEEL ACCESS HATCHCONE WITH VIBRATION BOTTOMHDAMPER (TURNABLE)CAPACITIVE SENSORLIME AUGERCONTROL PANELSILO WALL TO GROUND - WITH DOOR155013_ASSENTOFT_SILO_BIOGASBROCHURE_UK_REV_2012.indd 11 07/11/12 11.10DEVISION 155013assentoft siloSilovej 1, Assentoft · DK-8960 Randers SØTel.: +45 86 49 45 66Fax: +45 86 49 48 63Email: info@assentoftsilo.dkwww.assentoftsilo.dk155013_ASSENTOFT_SILO_BIOGASBROCHURE_UK_REV_2012.indd 12 07/11/12 11.10